Terms of use and sale

1. Purpose and role of the platform

The kstr platform, available at joinkstr.com, is operated by AUROCHS Ventures, a French simplified joint-stock company (SAS) with a share capital of €50,000, registered with the Nanterre Trade and Companies Register under number 912 058 104, whose registered office is located at 144 avenue Charles de Gaulle, 92200 Neuilly-sur-Seine, France, EU VAT number FR70912058104 (hereinafter “kstr”). kstr is a platform connecting advertisers (“Brands”) and content creators (“Creators”) wishing to carry out commercial influence operations. kstr provides tools for matching, contracting, tracking and invoicing. It is not a party to the contracts entered into between Brands and Creators, does not act on behalf of either party, subject only to the invoicing mandates provided for in articles 4 and 11.4 and the signature mandate provided for in article 3.1, and does not negotiate in their name. It does not hold the funds of collaborations, which are kept by its payment service provider until they are paid to the Creator or refunded to the Brand or, in the case provided for in article 7.5, placed in escrow.

2. Registration and minimum age

2.1 Conditions. Registration on the kstr platform is free of charge and reserved for adults (aged 18 or over) and legal entities represented by an adult with the capacity and legal authority to do so. On registering, each user certifies that they are 18 or over. The user warrants the accuracy of the information provided, in particular their legal information (identity, SIRET, address, tax residence, VAT regime) and, where applicable, the declared audience statistics. Brand registrations are verified by kstr. Any profile deemed misleading by kstr may be suspended.

2.2 Minors. A minor may not create an account on the kstr platform, even with parental consent, or use a third party's account, directly or indirectly. A Creator account dedicated to a child may only be opened by an adult parent or legal guardian, in their own name: they remain its sole holder and are solely responsible for it. They warrant that they act with the consent of the other holder of parental authority, where applicable. Where the image of a child under 16 is broadcast as part of a collaboration, the parent declares it on the kstr platform when signing the collaboration contract and certifies on their honour that they act with the consent of the other holder of parental authority, where applicable, and that they have completed, where applicable, the formalities referred to in article 2.3 (authorisation or approval under articles L. 7124-1 et seq. of the French Labour Code, or declaration under article 3 of French Law No. 2020-1266 of 19 October 2020, and deposit with the Caisse des dépôts et consignations of the share of the child's income provided for by law). This declaration is included in the collaboration contract; the parent provides evidence of it at the first request of kstr or the Brand. If kstr finds or learns that an account has been opened by a minor, it suspends it immediately and then deletes it together with the associated personal data, subject to data that the law requires to be kept; ongoing collaborations are cancelled and the amounts paid by the Brand are refunded. kstr may request proof of age at any time. In any event, the identity check carried out by the payment service provider used by kstr before any payout excludes minors.

2.3 Children's image. A Creator who features a child under 16 in content created as part of a collaboration undertakes to comply with French Law No. 2020-1266 of 19 October 2020 regulating the commercial exploitation of the image of children under sixteen on online platforms, as amended by Law No. 2023-451 of 9 June 2023, and with articles L. 7124-1 et seq. of the French Labour Code (in particular, as the case may be, the individual authorisation or prior approval where the child's activity is part of an employment relationship or, outside an employment relationship, the declaration to the administrative authority where the regulatory thresholds of duration, number of contents or income are exceeded, and the deposit of the share of the child's income provided for by law with the Caisse des dépôts et consignations until the child comes of age or is emancipated), as well as the child's right to privacy and image rights, which the parents exercise jointly (article 372-1 of the French Civil Code, as amended by Law No. 2024-120 of 19 February 2024); they warrant that they have the consent of the other holder of parental authority and any required authorisation. No content may undermine the dignity, safety or privacy of a child; the Brand refrains from requesting such content. Before any collaboration in which a child under 16 is the main subject, the Brand checks with the Creator whether they are subject to the above obligations, in accordance with article 3 of Law No. 2020-1266; the Creator declares it on the platform when signing the contract (article 2.2) and provides evidence at first request. The collaboration contract is then subject to article 8 of Law No. 2023-451 of 9 June 2023. kstr may remove any content or profile that does not comply with these rules.

2.4 Reporting. Anyone can report a profile that appears to belong to a minor or that does not comply with these rules, with the “Report this profile” link on each Creator profile or by writing to hi@joinkstr.com. Reports are handled by kstr as a priority and confidentially.

3. How a collaboration works

3.1 Contract. A collaboration on kstr arises from the acceptance (i) of a Creator's application by a Brand or (ii) of a Brand's proposal by a Creator. A bilingual collaboration contract, pre-filled with the information of the parties concerned, is then drawn up on the kstr platform; the Brand adjusts its terms and the Creator may request changes. A contract is drawn up for every collaboration, including when it only concerns a gifted product (“gifting”). It is signed electronically by both parties (the Brand and the Creator): each signature is authenticated by a one-time code sent by email and recorded in a time-stamped evidence file (articles 1366 and 1367 of the French Civil Code), which users accept as proof (article 1356 of the French Civil Code). Bulk signature. For a gifting campaign, a Brand signing a Creator's contract may, at the same time, authorise kstr to draw up, on the same terms, the contract of each of the other Creators it has already accepted for that campaign and who are awaiting their contract, and to sign it in its name. The list of these Creators is shown to it before it signs; the mandate only covers this closed list, and Creators accepted afterwards require a new signature. Each signature made under this mandate is recorded in the contract's evidence file, with a reference to the Brand's initial signature, and the contract so drawn up has the same value as if it had been signed by the Brand. The Brand may revoke this mandate by writing to hi@joinkstr.com; the revocation applies to contracts not yet drawn up. In the event of discrepancy between the language versions of the contract, the French version prevails. Each party may download the signed contract and keep it on a durable medium.

3.2 Payment. Once the collaboration contract has been signed, the Brand pays the agreed amount, plus the Creator's VAT where applicable, and the service fees. Payments are processed by Stripe Payments Europe, Limited, an electronic money institution authorised by the Central Bank of Ireland, whose terms (available at https://stripe.com/legal/ssa) apply and are accepted by the user upon accepting these terms. The collaboration funds are received by Stripe and kept on the platform's Stripe balance, without being transferred to kstr's bank account or used for any other purpose, until they are paid to the Creator or refunded to the Brand, according to the rules below. Only the amount of kstr's commission plus VAT (where applicable), once earned, is transferred to its bank account by Stripe. To receive their remuneration, the Creator opens a Stripe Connect account and accepts the Stripe Connected Account Agreement (available at https://stripe.com/legal/connect-account) upon accepting these terms; their earnings are transferred to it and then paid out to their bank account by Stripe under the conditions below.

3.3 Release of funds. By paying the amount provided for in the collaboration contract, the Brand gives an irrevocable instruction to pay the remuneration to the Creator in any of the following cases: (a) it approves the Creator's content agreed in the contract; (b) it does not respond within 7 days of the request to approve the Creator's content agreed in the contract; (c) both parties (Brand and Creator) agree in writing on the kstr platform; (d) an enforceable court decision orders it. kstr's commission, including VAT, is then deducted from the payout.

3.4 Tracker: content statistics. Content published as part of a collaboration between a Brand and a Creator may be tracked in the Tracker tool available on the kstr platform. The Creator authorises kstr to collect aggregate statistics on this content (in particular views, reach, likes, comments, shares, saves), through the accounts they have connected or the platforms' public APIs, and to share them with the Brand concerned, for 90 days after the publication of each content agreed by contract between the Brand and the Creator concerned. For platforms without automatic access, the Creator may declare their figures with a screenshot: they warrant their accuracy, and a misleading declaration constitutes a serious breach of their obligations under these terms and under the collaboration contract, which may justify the measures provided for in article 6.3. Figures are shown as “verified” (collected automatically) or “declared” in the Tracker tool available on the kstr platform. The Brand may share its analysis with the Creator. It uses the statistics only to assess the collaboration and refrains from disclosing them to third parties. Unless otherwise stipulated in the collaboration contract, the statistics have no effect on the approval of the content or on the Creator's remuneration. The Creator may disconnect their accounts at any time; if they do so before the end of the 90-day period, they declare their figures under the conditions above. kstr may use these statistics in aggregated and anonymised form, identifying neither the Creator nor the Brand, to improve its services and conduct studies. The statistics are provided for information purposes: kstr guarantees neither their completeness, nor the accuracy of declared figures, nor the availability of the platforms' APIs, and is not liable for any change or interruption of access to these APIs. kstr accesses connected accounts in compliance with the terms of use of the platforms concerned.

3.5 Payout countries. The payment service provider only pays remuneration to Creators established in the countries it supports for the platform. The list of these countries is set out in the appendix to these terms. The country taken into account is that of the address declared by the Creator in their legal information, whose accuracy they warrant. A Creator established in another country may take part in collaborations without cash remuneration (gifted product, known as “gifting”) and in charity campaigns; they may neither apply for nor enter into a paid collaboration. A Creator established outside the European Union, the European Economic Area and Switzerland whose activity targets, even incidentally, an audience in France undertakes, in accordance with article 9 of French Law No. 2023-451 of 9 June 2023, to appoint in writing a representative in the European Union and to take out professional civil liability insurance with an insurer established in the Union. They act on their own behalf and under their sole responsibility, provide evidence at the first request of kstr or the Brand, and indemnify kstr against any consequence of a breach of these obligations.

3.6 Payout account. To receive their remuneration, the Creator opens a payout account with the payment service provider Stripe and provides the supporting documents it requests. They warrant their authenticity and accuracy. This account must be opened before the payment of any paid collaboration: until it is, the Brand cannot pay the collaboration, which does not start. The Brand may then cancel the collaboration free of charge as long as it has not paid. If the Creator's account is suspended or closed by the provider after payment, the remuneration remains held by the provider until the Creator regularises their situation; failing this within 90 days of payment, the amount is handled in accordance with article 7.5.

3.7 Gifted product (“gifting”). Where a collaboration provides for a gifted product, the Brand delivers it to the Creator, as the case may be: (a) by shipping it to the address the Creator provides on the kstr platform; or (b) where its online store is linked to kstr, by means of a personal, single-use discount code limited to the gifted products and their price, which kstr creates in the Brand's store after the contract has been signed and which is annexed to the contract. In the latter case, the Creator orders the product themselves in the Brand's store, where they enter their delivery address; unless otherwise stated in the contract, the delivery fees charged by the store remain payable by the Creator. The code is strictly personal: assigning, reselling, sharing or publishing it, and using it for other products or outside the collaboration, are prohibited and constitute a serious breach that may justify the measures provided for in article 6.3. kstr may deactivate a code; the delivery of the product and its condition are the sole responsibility of the Brand.

4. Prices, fees and commission (general terms of sale)

The service fees applicable to Brands depend on their plan and are calculated on the amount of the collaboration excluding taxes (Starter: 10%, Pro: 7%, Business: 4%). A commission of 5%, calculated on the amount of the remuneration excluding taxes, is deducted from the remuneration paid to Creators by the Brand, only on amounts actually paid by the latter. Subscriptions and options (boost) are payable in advance for a fixed period and are not renewed automatically. Other offers, in particular gifting packs and plans, are described on the Pricing page and are subject to the terms accepted when they are purchased. Prices are shown excluding taxes; VAT is added according to the user's country and status.

OG status for Creators. A Creator who registered before the opening of the kstr platform (1 November 2026) obtains the OG status, shown by a badge on their profile. This status is free, personal, without consideration and can neither be transferred nor converted into money. It may be withdrawn if the Creator breaches these terms.

Earned service fees. kstr's service fees remunerate the matching between Brands and Creators, the platform's tools and the support provided to its users, including in the event of disagreement. They are earned by kstr upon payment of the collaboration and are not refundable, including in the event of cancellation or dispute, except in the event of gross negligence by kstr.

Invoices and invoicing mandate. kstr issues its own invoices (service fees, subscriptions, options, commission). A Creator with business status authorises kstr to issue, in their name and on their behalf, the invoices for their services to Brands (article 289-I-2 of the French Tax Code); each invoice is sent to them and may be contested within 15 days. The Creator remains solely responsible for their tax and social security obligations, in particular the declaration and payment of VAT.

Tax and social information. In accordance with article 242 bis of the French Tax Code, kstr informs Creators and Referrers, on each transaction, of their tax and social security obligations, with a link to the websites of the tax authorities and social security bodies. Each year, by 31 January at the latest, it sends them a summary of the gross amount received through it during the previous year. Pursuant to articles 1649 ter A et seq. of the same code (Directive (EU) 2021/514, known as “DAC7”), kstr collects and verifies the identification information of Creators and Referrers (identity, address, tax identification number, VAT number, bank details) and reports annually to the tax authorities the amounts paid to them; the user concerned receives a copy of the information reported. A user who does not provide this information after two reminders may have their account suspended and their payouts withheld until regularisation.

5. Commercial influence obligations

5.1 Legal framework. The Brand and the Creator each undertake, as far as they are concerned, to comply with French Law No. 2023-451 of 9 June 2023 regulating commercial influence and combating abuses by influencers on social networks, as amended, and with the rules applicable to advertising and commercial practices, in particular: the clear, legible and identifiable mention “Advertising” or “Commercial collaboration” (« Publicité » / « Collaboration commerciale ») throughout each sponsored content, whatever its format; the mentions “Retouched image” or “Virtual image” where required; the prohibition or restriction of the promotion of certain products and services (in particular cosmetic surgery and medicine, therapeutic abstention, nicotine products, animals, financial products and services and crypto-assets, gambling, alcoholic beverages); and the conclusion of a written contract containing the mentions of article 8 of the law where the total remuneration and benefits in kind granted by the same Brand to a Creator over a year reaches €1,000 excluding VAT (Decree No. 2025-1137 of 28 November 2025). This written contract is drawn up and signed on the platform for each collaboration (article 3.1), including collaborations remunerated in kind. The Brand and the Creator are solely responsible for its content and its compliance with article 8 of Law No. 2023-451 of 9 June 2023.

5.2 Role of kstr. kstr is neither an advertiser, nor an influencer, nor an influencer's agent within the meaning of articles 1 and 7 of Law No. 2023-451 of 9 June 2023. It does not represent any Creator, does not negotiate the terms of collaborations, does not design or approve content and does not receive any remuneration on behalf of a Creator. The contract templates and the platform's tools are provided for guidance and to facilitate the meeting and collaboration between Brands and Creators: they do not constitute legal advice and it is for the Brand and the Creator to adapt them to each collaboration. The Brand and the Creator acknowledge that kstr is not bound by the joint liability provided for in article 8 of the law and refrain from seeking its liability on this basis.

5.3 Brand's obligations. The Brand warrants that the products, services or causes promoted are lawful and may be promoted through influence. It provides the Creator with accurate and fair information, in particular on their characteristics, price and environmental, health or performance claims, and refrains from asking them to make a misleading claim or to conceal the commercial intent.

5.4 Creator's obligations. The Creator presents the products and services promoted, and their real experience of them, fairly. They refrain from any purchase or manipulation of followers, views or interactions. They keep proof of the display of the mandatory mentions. Where, as part of a collaboration, they themselves sell goods supplied by a third party, they are automatically liable to the buyer for the proper performance of the sale (article L. 221-15 of the French Consumer Code).

5.5 Measures by kstr. kstr does not carry out any prior review of content. It may, however, without being obliged to do so and under the conditions of article 15.3, request the modification of content, remove it or request its removal, suspend a collaboration or defer its payment where the content or the product promoted appears to it to be manifestly unlawful. These measures do not make kstr the author or publisher of the content, nor the guarantor of its lawfulness.

5.6 Authorities and indemnity. The Brand and the Creator keep the contract, the brief and the content of each collaboration for at least 5 years. They remove without delay any content whose removal is requested by an authority (in particular the DGCCRF, Arcom or the Autorité nationale des jeux) and cooperate in good faith with kstr in the event of an investigation or complaint. kstr may communicate to the competent authorities the information that the law requires it to provide. The Brand and the Creator, each as far as they are concerned, indemnify kstr against any claim, action or proceeding by a third party or an authority based on a breach of Law No. 2023-451 or advertising rules, and compensate it for any resulting judgments and reasonable defence costs.

6. Non-circumvention

6.1 Principle. Any contact between a Brand and a Creator made through kstr (application, message, collaboration proposal) commits both parties to conclude and pay on the kstr platform any collaboration resulting from it. Any collaboration concluded between a Brand and a Creator, one of whom has viewed the other's profile or campaign on kstr, is presumed to result from that viewing, unless proven otherwise. This undertaking applies throughout the use of the service and for 12 months after the last exchange between the parties on the kstr platform or, failing any exchange, the last viewing by the user on the kstr platform. It does not apply where the parties provide written evidence of a business relationship prior to their introduction on kstr.

6.2 Prohibited practices. The following are in particular considered attempts at circumvention:

• proposing, soliciting or accepting a payment outside the kstr platform for a collaboration, an attempted collaboration or a Brand or Creator identified on it;
• communicating or requesting contact details (email, phone, messaging, social media account, payment link or details) before the first payment, in order to continue the exchange outside the kstr platform;
• disguising a collaboration (gift, invoice for another service, splitting of the amount) to avoid service fees or commission;
• encouraging the other party to leave the kstr platform or to continue exchanges outside the kstr platform, or using another account to circumvent a restriction.

6.3 Sanctions. Depending on the seriousness and repetition of the facts, kstr may, after examining the evidence in its possession and by a reasoned decision notified to the user under the conditions of article 15.3: issue a warning; temporarily suspend the account; pronounce a permanent ban from the kstr platform, which entails the closure of the account and a prohibition on re-registering under any identity, email address or entity. In the event of suspension or ban, ongoing subscriptions and options are not refunded. Amounts due to a Creator for collaborations properly carried out on the platform remain payable. In addition, a user who concludes or pays a collaboration outside the platform in breach of article 6.1 owes kstr, as a penalty clause (article 1231-5 of the French Civil Code), a fixed indemnity equal to twice the service fees and commission that would have been due had the collaboration been paid on the platform, with a minimum of €500 excluding VAT per collaboration, without prejudice to compensation for any additional damage proven by kstr.

6.4 Reporting. A user who receives a circumvention proposal, or who is the victim of one, must immediately inform kstr at hi@joinkstr.com, attaching if possible a screenshot or the link to the conversation. A user who reports in good faith a solicitation they did not follow up on is not exposed to any sanction. Reports are handled confidentially.

6.5 Protective measures. Contact details are masked in the messaging until the first payment of a collaboration between the parties. In the event of a report or serious suspicion of circumvention, the kstr team may consult the exchanges concerned, for the sole purpose of verifying the facts, under the conditions of article 14.2.

7. Disagreement, conciliation and default rule

7.1 Disagreement about the collaboration. In the event of disagreement between the Creator and the Brand about the content covered by the collaboration contract, the Brand opens a dispute on the platform before approval, identifying the specific point of the collaboration contract or brief not complied with by the Creator; a subjective preference is not a valid ground for disagreement. The dispute must be opened within the 7-day period provided for in article 3.3 (b); failing this, the content is deemed approved. The Creator is first given an opportunity to correct, which they exercise within 7 days of the opening of the dispute.

7.2 Conciliation. Failing a satisfactory correction, kstr offers the parties an amicable conciliation of 15 days. This purely contractual conciliation is neither a conciliation nor a mediation within the meaning of articles 1530 et seq. of the French Code of Civil Procedure: kstr acts neither as a court conciliator or mediator, nor as an arbitrator within the meaning of articles 1442 et seq. of the same code: its proposals are not binding on the parties, who retain the right to bring the matter before the court. An agreement between the parties (full payment, partial payment pro rata to compliant deliverables, or refund) is executed on the kstr platform.

7.3 Default rule. Failing agreement at the end of the conciliation provided for in article 7.2, the Brand is refunded the amount of the collaboration (excluding service fees, earned by kstr) and waives any right to use the content, which the Creator undertakes to remove and not to reuse. If only part of the deliverables complies, the Creator is paid pro rata to the deliverables whose compliance the Brand did not contest in the dispute, and the balance is refunded. This rule is accepted in advance by the parties as a payment instruction given to kstr.

7.4 Abuse. kstr may suspend the account of a user who repeatedly opens unjustified or abusive disputes, under the conditions of article 6.3.

7.5 Escrow. Where the funds of a collaboration can neither be paid to the Creator nor refunded to the Brand within 90 days of their payment by the Brand (pending court proceedings, payout account suspended or closed, opposition by an authority or any other impediment), the payment service provider transfers them to kstr, in accordance with its own rules. kstr then places them without delay in a separate bank account, opened in its name for this sole purpose and reserved exclusively for holding such funds, on behalf of the party or parties concerned. It informs the parties, does not mix these funds with its own and makes no other use of them. A flat fee of €100 excluding VAT is deducted from the funds placed, up to their amount, to cover the costs of opening and managing this account. The balance is handed over without delay to the party designated by the parties' agreement or by the enforceable court decision.

8. Right of withdrawal

Services offered to professionals do not benefit from the right of withdrawal. A consumer user may withdraw without giving a reason within 14 days of subscribing to a subscription or option, by sending an unambiguous statement to hi@joinkstr.com. If they expressly requested that performance begin before the end of this period, they owe an amount proportionate to the service provided until their withdrawal. They can no longer withdraw once the service has been fully performed before the end of the period, in particular a boost option activated immediately, if they gave their prior express consent and acknowledged the loss of their right of withdrawal. The amounts due are refunded within 14 days of their withdrawal, by the same means of payment.

9. Liability

kstr is bound by an obligation of means. It implements reasonable means to ensure the availability and security of the service, without guaranteeing that it is free from interruptions or errors; it may interrupt it for maintenance, updates or security, if possible after informing users in advance. It guarantees neither the results of campaigns, nor the accuracy of statistics and information declared by users, nor the performance of contracts concluded between Brands and Creators, for which each party remains solely responsible, nor the solvency, real identity or qualities of users beyond the checks provided for in these terms. kstr is not liable for content published by users (article 15), for the products and services promoted, for compliance by Brands and Creators with Law No. 2023-451 of 9 June 2023, or for the decisions, acts or failures of social networks, the payment service provider or any other third party (in particular account suspension, algorithm change, refusal or freezing of funds). In relations between professionals, and except in the event of gross negligence, wilful misconduct or bodily injury, kstr is only liable for direct and foreseeable damage, excluding in particular loss of turnover, profits, customers, opportunity, data or image. In these same relations, kstr's liability in respect of a collaboration is limited to the amount, excluding taxes, of the service fees and commission it received for that collaboration and, for any other cause, to the amount, excluding taxes, of the sums the user paid it during the 12 months preceding the event giving rise to liability, without exceeding €5,000 per calendar year, all causes combined.

Limitation period. Between professionals, any action against kstr is time-barred one year from the day on which the user knew or should have known of the event giving rise to it (article 2254 of the French Civil Code).

Consumers. With regard to consumers, the above limitations apply only to the extent permitted by the French Consumer Code; kstr is liable for damage resulting from the non-performance of its own obligations under ordinary law.

Account and security. The user is solely responsible for the confidentiality of their login details and the use of their account; any action carried out from their account is deemed to have been carried out by them, unless a fraudulent use has previously been reported to hi@joinkstr.com. It is up to them to keep a copy of their own content and data.

Indemnity. Each user indemnifies kstr against any claim, action or proceeding by a third party or an authority based on their content, their declarations, their use of the service or their breach of these terms or the law, and compensates it for any resulting judgments, settlement fines and reasonable defence costs, including legal fees. kstr informs them of the claim and may, at its discretion, conduct its own defence.

10. kstr solidaire (associations and charity campaigns)

10.1 Eligible organisations. The kstr solidaire programme is reserved for non-profit organisations with a charitable purpose: humanitarian or social action, health, help for people in difficulty, protection of the environment or animals, education and access to culture for all. The charitable nature of the cause is an essential criterion for kstr. Association status alone is not sufficient: an organisation whose purpose is not charitable, in particular a leisure, sports or social club, a professional or traders' association, or an organisation whose main purpose is political, trade union or religious, may be refused access.

10.2 Verification. The organisation applies for the programme from its profile, providing its RNA or SIREN number and, where applicable, its recognition as being of public utility or general interest. kstr checks this information against public registers and may request any supporting document (articles of association, publication in the Journal officiel, tax ruling). The status is granted or refused at kstr's sole discretion, without any obligation to give reasons. A verified organisation benefits from the “Solidaire” offer: no subscription or service fees apply to its charity campaigns.

10.3 Volunteering by Creators. A charity campaign gives rise to no remuneration and no payment on the kstr platform. A Creator who takes part does so voluntarily and free of charge; they may decline or end their participation at any time, without justification or consequence. No commercial collaboration contract is drawn up and no commission is charged. The association refrains from making participation conditional on any consideration, and the Creator refrains from asking for any. A product or service offered to the Creator constitutes a benefit in kind: the campaign is then no longer voluntary and falls in particular under articles 3 to 5.

10.4 No fundraising by kstr. Donations never pass through kstr. The Creator's personal donation link redirects the public directly to the donation page chosen by the association, which collects donations under its sole responsibility, issues tax receipts where applicable and complies with the rules applicable to public fundraising. kstr acts neither as a fundraising intermediary nor as the association's agent, and is not responsible for the operation of the donation page or the use of the funds collected.

10.5 Transparency. The Creator clearly states, in each content, that they support the cause presented on a voluntary basis. If a company finances or co-organises the operation (sponsorship, partnership), this support must be mentioned and the mention “Advertising” or “Commercial collaboration” applies as soon as the Creator receives any consideration (article 5). Content must not misrepresent the use of donations.

10.6 Visit measurement. Each visit through a donation link is counted in aggregated form, without identifying visitors and using an audience measurement tool that complies with the CNIL's recommendations (excluding robots and repeated visits by the same person within the hour), so that the association and the Creator know the audience generated. kstr knows neither the existence nor the amount of donations actually made.

10.7 Name and image of the association. Only the association holding a verified account may publish a charity campaign in its name. No one may use the name, logo or image of an association on kstr without the prior consent of that association. The association authorises participating Creators to mention its name and use the campaign materials for the sole duration and purpose of the campaign.

10.8 Withdrawal of status. kstr may at any time withdraw verified association status, suspend or delete a charity campaign, in particular in the event of inaccurate information, loss of non-profit status or a purpose that is not or no longer charitable, use of the programme for commercial purposes or a cause contrary to these terms, the law or public order.

11. Brand referral programme (creators and referrers)

11.1 Membership. Any registered Creator may join the referral programme from their space on the kstr platform, by accepting these terms. Any natural person who is not a Creator may also take part if they are established in one of the countries where kstr can pay commissions (list in the appendix), open a “Referrer” account and declare the commissions received according to the rules applicable in their country; this account is activated after verification by kstr, which may refuse it without having to give reasons. In this article, the “Referrer” means both the Creator taking part in the programme and the holder of a Referrer account. The Referrer receives a personal link; they may also invite a Brand from the “Invite a brand” page. Participation in the programme is optional, free and non-exclusive: no minimum target or volume is imposed on the Referrer.

11.2 Referred Brand. A Brand is attached to the Referrer if it creates its account on the kstr platform with their personal link or following their invitation, within 30 days of clicking on that link or of the invitation being sent, and did not yet have an account. No attachment is possible for a Brand that the Referrer manages or controls, that controls them or that employs them. In the event of several links or invitations, only the link or invitation used at registration counts, failing which the first invitation sent. A Brand has only one Referrer. Any challenge to an attachment must be sent to hi@joinkstr.com within 60 days of the Brand's registration; failing this, the attachment recorded by kstr is final. kstr may correct a manifestly incorrect attachment.

11.3 Commission. For 24 months from the referred Brand's registration on the kstr platform, the Referrer receives a commission equal to 20% of the remuneration excluding taxes actually received and definitively earned by kstr (Brand service fees and commission on the Creator) on each collaboration of that Brand whose funds have been released to the Creator (article 3.3), whatever the Creator selected. The commission is earned on that date; if all or part of kstr's remuneration is subsequently refunded, cancelled or disputed, the commission is reduced accordingly and the difference may be deducted from subsequent commissions. This commission is taken from kstr's remuneration: it never reduces the remuneration of other Creators. Subscriptions, options, charity campaigns and refunded amounts do not give rise to commission, nor do collaborations concluded in breach of article 6 or those in which the Referrer is themselves the selected Creator.

11.4 Payment. Commissions are paid to the Referrer's payout account opened with the payment service provider (article 3.6), within 30 days of the end of the month in which their total reaches €10. They are stated excluding taxes and are increased by VAT where the Referrer is liable for it. Amounts below this threshold are carried forward and paid at the latest at the end of participation in the programme, except in the event of fraud. The Referrer declares these amounts according to their tax and social security regime; where they have business status, they authorise kstr to issue the corresponding invoicing documents in their name (self-billing), which they may contest within 15 days, as provided for in article 4. Where required by law, kstr reports these commissions to the tax authorities.

11.5 Fair dealing. The Referrer presents the platform accurately, without any promise that kstr has not made, and states that they take part in the referral programme and are remunerated for it. They comply with the rules applicable to commercial prospecting. In particular, they refrain from sending mass unsolicited messages, creating fake brand accounts, buying keywords or advertisements using the kstr brand, any use of kstr's trademarks, logos and visuals outside the materials made available to them, presenting themselves as an employee, agent or representative of kstr, and any manoeuvre aimed at receiving a commission without a genuine referral. If they promote the platform publicly on their networks in return for commissions, they apply the commercial influence rules (article 5), in particular the mention “Commercial collaboration”; kstr then being the advertiser, a Referrer whose commissions received for such promotions reach €1,000 excluding VAT over a year signs with kstr, on the platform, a written contract containing the mentions of article 8 of Law No. 2023-451, and kstr may suspend the payment of commissions until it is signed.

11.6 End. kstr may modify or end the programme for the future, informing Referrers at least 30 days before it takes effect; commissions earned before that date remain due. In the event of fraud or breach of article 11.5, kstr may exclude the Referrer from the programme without notice, under the conditions of article 15.3, refuse the commissions linked to that breach and obtain the return of those already paid, where applicable by set-off against any amount owed to the Referrer.

11.7 Independence of the Referrer. The Referrer, whether or not a Creator, acts independently, in their own name and on their own behalf, without any relationship of subordination or mandate enabling them to bind kstr or a Brand; they neither negotiate nor conclude any contract in the name of kstr and do not have the status of commercial agent within the meaning of article L. 134-1 of the French Commercial Code. They declare and pay the taxes and contributions due on their commissions, register where the regularity of their activity requires it and keep their legal information up to date. kstr may deactivate a Referrer account that no longer meets these conditions; commissions earned before deactivation remain due, except in the event of fraud.

11.8 Confidentiality. The Referrer is informed of the attachment of each referred Brand and of the amount of their commissions, without details of the collaborations, the selected Creators or the agreed amounts. They refrain from disclosing the registration of a referred Brand on the platform, in particular where it has activated STEALTH mode (article 12), and from using the information they learn through the programme for other purposes.

12. Brand confidentiality and STEALTH mode

12.1 Client confidentiality. kstr undertakes, subject to articles 12.5 and 12.6, not to disclose the list of its Brand clients or the fact that a Brand is registered on the platform, and not to make any communication on the identity of a Brand (logo, case study, business reference, social media post) without its prior written consent. This undertaking applies to all Brands, whether or not STEALTH mode is activated, throughout their registration and for 10 years after it ends.

12.2 STEALTH mode. The Brand may activate STEALTH mode on registration or at any time from its profile on the kstr platform, free of charge. Its brand page is then no longer accessible, the reviews it leaves are displayed without its name and its campaigns published in STEALTH mode show neither its name, nor its logo, nor its website, nor the name of its signatory; its name is also masked, by automated processing, when it appears in the text of the campaign. The Brand writes its campaigns so as not to allow its identification (visuals, product description, distinctive elements); kstr does not guarantee that third parties cannot identify it from the elements it has itself published. Only the kstr team knows that the Brand is registered, subject to articles 11.8, 12.3 and 12.5.

12.3 Disclosure. The Brand reveals itself to a Creator, and to that Creator only, from the first exchange with them: message sent in the messaging or collaboration proposal. The Creator thus knows the Brand's identity before any commitment, in particular to respect any exclusivity and their advertising disclosure obligations. The Creator undertakes, unless the Brand agrees otherwise, to disclose neither the identity of a STEALTH Brand they discover nor the non-public information of its campaigns and briefs (products, launches, proposed terms): until the publication of the agreed content where a collaboration is concluded, and for 12 months from the last exchange otherwise. Any breach engages their sole liability towards the Brand and may justify the measures provided for in article 6.3.

12.4 Profile visits. When a Brand or the kstr team views a Creator's profile, the Creator may be informed and see the number of visits received, distinguishing visits by Brands from those by the kstr team, without knowing the Brand's identity, unless it initiates an exchange with them (article 12.3).

12.5 Limits. Confidentiality does not prevent communications required by law (response to a judicial or administrative authority, tax and accounting obligations) or documents specific to a collaboration (contract, invoice, tax declarations provided for in article 4), which identify the parties. Nor does it prevent the communication of information, strictly to the extent necessary, to kstr's service providers (payment, hosting, electronic signature), to its advisers bound by professional secrecy, to a potential acquirer or investor bound by a confidentiality obligation, or its production in court to defend kstr's rights. It does not cover information that the Brand itself makes public.

12.6 Scope. kstr is bound by an obligation of means under this article, and its liability is subject to the limits of article 9. It is not liable for disclosures made by a Creator, a Referrer or any other user in breach of these terms. STEALTH mode exempts neither the Brand nor the Creator from the transparency obligations provided for in article 5: published content includes the mentions required by law, and the Brand is identified in the collaboration contract in accordance with article 8 of Law No. 2023-451.

13. Intellectual property

13.1 Platform. The platform, its structure, software, databases, texts, trademarks (including the kstr trademark), logos and graphic elements belong to kstr or its licensors and are protected by the French Intellectual Property Code. Any reproduction, extraction or reuse, in whole or in part, without the written consent of kstr is prohibited, in particular the automated extraction of profile or campaign data.

13.2 Users' content. The user retains the rights to the content they publish on the platform (profile, photographs, texts, logos, briefs, reviews). They grant kstr, free of charge and on a non-exclusive basis, worldwide and for the duration of their registration, the right to reproduce, display and technically adapt it (format, cropping) on the platform, solely for the needs of the service and in compliance with article 12. They warrant that they hold all the necessary rights, in particular to the image of the persons depicted.

13.3 Collaboration content. The rights to use content created as part of a collaboration (media, duration, territory, advertising uses) are set exclusively by the collaboration contract, in accordance with articles L. 131-1 et seq. of the French Intellectual Property Code. kstr acquires no rights to this content.

14. Personal data and confidentiality of correspondence

14.1 Personal data. kstr processes users' personal data as data controller, in accordance with Regulation (EU) 2016/679 (GDPR) and French Law No. 78-17 of 6 January 1978, under the conditions described in its privacy policy available on the kstr platform. The policy specifies the purposes, legal bases, retention periods, recipients (including the payment service provider), any transfers outside the European Union and the rights of data subjects. Each Brand and each Creator is responsible for the processing it carries out itself on data obtained in the course of a collaboration and refrains from using it for other purposes.

14.2 Messaging. Exchanges in the messaging are private correspondence. The user is informed of and accepts, by accepting these terms, that, for the sole purpose of preventing circumvention (article 6) and fraud, messages are subject to automated processing intended to mask contact details, and that the kstr team may read them in the cases provided for in article 6.5 or to respond to a legal request.

15. Content moderation, ranking and redress

15.1 Hosting. For content published by users, kstr acts as a hosting service provider within the meaning of Regulation (EU) 2022/2065 on digital services (DSA). It does not carry out any general prior review of this content and is not liable for it as long as it has no actual knowledge of its unlawful nature.

15.2 Reports. Anyone can report content they consider unlawful or contrary to these terms, with the “Report” link or at hi@joinkstr.com, stating the reasons for the report, the precise location of the content and their contact details. kstr acknowledges receipt of the report, handles it diligently and informs its author of the action taken. The single point of contact for users and authorities (articles 11 and 12 of the DSA) is hi@joinkstr.com, in French or English.

15.3 Decisions and redress. Any decision to remove content, restrict visibility, suspend or close an account or suspend payouts is notified to the user concerned with a statement of reasons (facts relied on, legal or contractual basis), in accordance with article 17 of the DSA. In an emergency (fraud, harm to a minor, established circumvention, manifestly unlawful content), the measure may be taken immediately and notified afterwards. The user may contest the decision within 6 months at hi@joinkstr.com; their complaint is examined by a person who did not take the initial decision. They retain the option of bringing the matter before the court.

15.4 Listing and ranking. Profiles and campaigns are presented according to relevance criteria determined by kstr, mainly the match with the search, the filters and the Brand's brief (topics, networks, audience, engagement, rate), the reliability of the profile (statistics verified with the networks, verification by kstr, ongoing review), the completeness of the profile and recent activity on the platform. kstr may change these criteria; no user has a right to a specific rank or visibility. Paid options (boost) improve the visibility of their beneficiary; the content concerned is flagged as such (article L. 111-7 of the French Consumer Code).

16. Term, suspension and termination

16.1 Term. These terms apply for an indefinite period from registration. The user may close their account at any time from their space or by writing to hi@joinkstr.com. Closure takes effect after ongoing collaborations have been completed or cancelled and the amounts due have been paid; subscriptions and options already paid remain earned, subject to article 8.

16.2 Termination by kstr. kstr may terminate a user's account with 30 days' notice sent by email. It may suspend or terminate it without notice, under the conditions of article 15.3, in the event of a serious breach (fraud, circumvention, false declaration, harm to the rights of a minor, unlawful content, non-payment) or by order of an authority.

16.3 Survival. The following remain applicable after the closure of the account, for the time necessary for their performance: the amounts due under articles 4 and 11, article 6 (for the period provided for in article 6.1) and articles 7, 9, 12, 13, 14 and 19.

17. Acceptance and modification of the terms

17.1 Acceptance. The user accepts these terms by ticking the box provided for this purpose on registration. They may consult, download and print them at any time from the kstr platform. These terms prevail over any other document of the user, in particular their own general terms and conditions.

17.2 Modification. kstr may modify these terms, in particular to take account of legal or technical developments or changes to its offer. Users are informed of any substantial modification by email or by a message on the platform at least 30 days before it comes into force, unless a legal obligation requires a shorter period. A user who refuses the modification may close their account free of charge before that date; failing this, continued use of the service constitutes acceptance. Each collaboration remains governed by the version of the terms, and by the fees and commissions, in force on the day of its payment.

18. General provisions

18.1 Force majeure. No party is liable for a failure caused by force majeure within the meaning of article 1218 of the French Civil Code, including the unavailability of the payment service provider, a social network or the hosting provider, or a cyberattack.

18.2 Evidence. The computer records of the kstr platform (connection logs, time stamps, signature evidence files, messaging and payment histories), kept under reasonable security conditions, are authoritative between the parties unless proven otherwise (article 1356 of the French Civil Code).

18.3 Assignment / transfer. kstr may assign or transfer these terms to any entity that takes over all or part of the operation of the kstr platform, without diminishing users' rights, who are informed of it. The user consents in advance to such an assignment or transfer. The user may not assign their account or the rights they derive from these terms without the written consent of kstr.

18.4 Severability and non-waiver. The nullity of a clause does not affect the other provisions of these terms. The fact that kstr does not invoke a breach does not constitute a waiver of the right to invoke it later.

18.5 Language. These terms are written in French. In the event of translation into a foreign language, only the French version is authoritative.

19. Governing law and dispute resolution

These terms are governed by French law. Failing an amicable settlement, any dispute between kstr and a professional user falls, to the extent permitted by law (in particular article 48 of the French Code of Civil Procedure and article 25 of Regulation (EU) No 1215/2012), within the exclusive jurisdiction of the Commercial Court (tribunal des activités économiques) of Nanterre, including in the event of multiple defendants or third-party claims. With regard to consumers, the statutory rules of jurisdiction apply. In accordance with articles L. 612-1 et seq. of the French Consumer Code, the consumer may, after sending a written complaint to kstr, use free of charge the following consumer mediator: Centre de Médiation et d'Arbitrage de Paris (CMAP), 39 avenue Franklin D. Roosevelt, 75008 Paris, France, www.cmap.fr.

Appendix — Payout countries

Remuneration can be paid to Creators established in the following 42 countries:

• European Union (27 member states): Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden;
• Other European countries: Gibraltar, Liechtenstein, Norway, Switzerland, United Kingdom;
• Americas: Canada, Mexico, United States;
• Asia-Pacific and Middle East: Australia, Hong Kong, Japan, New Zealand, Singapore, Thailand, United Arab Emirates.

This English version is provided for convenience. In case of discrepancy, the French version prevails.