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Terms of service

Last updated October 7, 2026

These terms are a binding agreement between you and Samesay, France ("Samesay", "we", "us"). They govern every use of the Samesay website, editor, API and related services (the "Service"). By creating an account, buying anything, calling the API or otherwise using the Service you accept these terms, the privacy policy and the cookie policy. If you do not accept them, do not use the Service.

If you use the Service on behalf of a company or another organisation, you confirm that you have the authority to bind it, and "you" includes that organisation.

1. Eligibility

  • You must be at least 16 years old, or the age of digital consent where you live if it is higher, and able to enter into a contract.
  • You must give accurate account information and keep it current. One person per account, one account per person unless we agree otherwise in writing.
  • You may not use the Service if you are subject to sanctions that forbid it or if we have previously closed an account of yours for breach of these terms.

2. What the Service is

Samesay takes text that you provide and produces reworded versions of it with an automated language model, then compares each version with your original and reports what it finds (figures, names, negations, qualifiers, length, writing habits). It also offers an AI checker (a heuristic estimate from writing habits) and a word counter. The Service is a writing tool. It does not write for you from nothing, does not verify facts, does not give legal, medical, financial or academic advice, and does not review your work.

Outputs are generated automatically from your input. They can be wrong, incomplete, misleading, repetitive or inappropriate, and they can change the meaning of your text, including numbers and facts. You are solely responsible for reading, checking and deciding whether to use any output. The automated meaning check and style score are aids: they can miss changes and they are not a guarantee of accuracy or quality.

3. No detector or outcome promises

We make no representation, warranty or promise that any text produced by the Service will pass, fail, score in a given way on, or be treated in a given way by any AI detection tool, plagiarism checker, originality checker, similarity report, search engine, platform, publisher, examiner, institution or person, now or in the future. Such tools change constantly, are outside our control, disagree with each other and produce false results in both directions. Any score, percentage or label shown in the Service is computed with our own rules for your information only and is not a prediction of any third-party result. Marketing or documentation describing published research methods describes those methods, not a result you will obtain.

4. Acceptable use

You agree to use the Service only in a lawful, honest way and in line with the rules that apply to you. In particular you must not use the Service, or any output, to:

  • Submit work as your own where that is forbidden, or hide the use of AI assistance where disclosure is required, including in schools, universities, examinations, admissions, academic publishing, scholarship or grant applications, journalism and professional certifications. If your institution, employer, client, publisher or platform forbids AI-assisted writing or requires its disclosure, that rule applies to anything you produce with the Service, and complying with it is entirely your responsibility.
  • Deceive, defraud or mislead any person, impersonate any person or organisation, fabricate reviews, testimonials, credentials or evidence, or misrepresent who wrote a text where that matters to the reader.
  • Produce or spread spam, mass unsolicited messages, disinformation, defamation, harassment, hate, incitement, sexual content involving minors, material that infringes rights, or anything illegal where you or we are located.
  • Submit text you do not have the right to use, copy or modify, including personal data of others you are not allowed to process, confidential information you are bound to protect, or content protected by copyright without permission.
  • Submit malicious input designed to disrupt, probe, overload, reverse engineer or extract the models, prompts, weights, rules or data behind the Service, or to circumvent limits, quotas, pricing, identity checks or security.
  • Resell, sublicense, share, rent or make the Service available to third parties, share accounts or API keys, scrape the Service, or build a competing product with it, unless we agree in writing.
  • Use the Service in any way that breaks a law or regulation, including export control, sanctions and data protection law.

We may, but have no duty to, monitor use of the Service for compliance. We may refuse, limit or stop processing of any request at our discretion.

5. Your content and our rights

You keep all rights you have in the text you submit ("Input"). As between you and us, you own the output generated for you ("Output"), to the extent the law allows ownership of machine-generated text, and you accept that identical or similar Output may be produced for other users from similar Input. You grant us a worldwide, non-exclusive, royalty-free licence to host, copy, process, transmit and display your Input and Output solely to provide, secure, measure and improve the Service and to comply with the law. We do not use your Input or Output to train language models. Aggregated, anonymised usage statistics are ours.

The Service, its software, design, rules, scores, documentation and brand are our property or that of our licensors and are protected by intellectual property laws. Open-source components are used under their own licences, listed in the Service's third-party notices. You get no rights other than the limited, revocable, non-transferable permission to use the Service under these terms.

If you send us feedback or suggestions, we may use them without any obligation to you.

6. Accounts, security and API keys

  • You are responsible for everything done through your account and your API keys, whether or not you authorised it. Keep your password and keys secret, and tell us at once at hello@samesay.app if you suspect misuse.
  • API use is subject to the published rate limits and to your plan. We may change, version or retire API endpoints with reasonable notice, except for security fixes which may be immediate.
  • We may require identity or bot checks, and may limit free or unpaid use by device, network or other signals described in the privacy policy.

7. Plans, credits, prices and payment

  • Subscriptions (Basic, Pro, Ultra) renew automatically at the end of each monthly or yearly period, at the price in force when the period starts, until you cancel. You can cancel at any time from your account page or through the billing portal; the subscription then stays active until the end of the period already paid, and is not renewed. Word allowances are per period, reset at each period and do not roll over. Plan limits (words, text length, strength, versions) are those shown on the pricing page at the time of use and may differ by plan.
  • Credits are prepaid units: one credit allows one rewrite run with the limits shown on the pricing page at the time of use. Credits are consumed only when a run is not covered by your plan, are personal, non-transferable, hold no monetary value, cannot be exchanged for cash and are not refunded once used. Each credit pack is valid for 30 days from the date of purchase; credits not used by then expire and are forfeited without refund. Credits are spent from the pack that expires first. They are also forfeited when the account is deleted or closed for breach.
  • Free allowances (free plan words, free retries, free tries) are a courtesy, may be limited or withdrawn at any time, and may not be accumulated across accounts.
  • Prices are shown in US dollars unless stated otherwise and exclude taxes, which are added where the law requires. Your bank may apply conversion fees. We may change prices; a change to a subscription price applies from the next renewal after we have notified you at least 14 days in advance, and you may cancel before it applies.
  • Payment is processed by Stripe under its own terms. We never see or store full card numbers. If a payment fails, we may suspend paid features until it is settled. Reversing a payment or opening a chargeback for a service you have used is a breach of these terms; we may suspend the account and recover amounts due.
  • Immediate delivery. Paid features and credits are made available immediately after payment. By buying, you expressly request immediate performance and acknowledge that, where a statutory right of withdrawal exists for consumers, it is lost once performance has begun with your consent, within the limits of the law that applies to you.

8. Refunds

  • Subscriptions are not refunded for partial periods, unused words or lack of use. Cancelling stops the next renewal.
  • Credits that have been used are not refunded. Unused credit packs may be refunded in full if you ask within 14 days of purchase and no credit from that pack has been used.
  • If a rewrite fails on our side, no words or credits are charged for it, and anything charged is returned automatically.
  • If you believe a charge is wrong, write to hello@samesay.app within 14 days of the charge with the account email and the date; we answer within 10 working days. Refunds, when granted, go back to the original payment method.
  • Right of withdrawal. If you are a consumer, you normally have 14 days to withdraw from a distance contract. Because plans and credits are digital content and services delivered immediately at your express request, you acknowledge when buying that you lose this right as soon as delivery starts (French Consumer Code, articles L.221-28 1° and 13°); the checkout page says so before you pay.
  • Nothing in this section removes rights that consumer law gives you and that cannot be excluded by contract.

9. Referral programme

Every account holder may take part in our referral programme ("affiliate") by sharing their personal link. The programme is a voluntary, revocable offer, not an employment, agency, partnership or franchise relationship, and the following rules apply in addition to these terms.

  • Attribution. A person becomes your referral when they create an account within 90 days of opening your link, from the same browser, and no other referral was recorded for that account. Attribution is determined solely by our records. We do not attribute accounts after the fact.
  • Commission. You earn 20% of the amounts actually received by us, net of taxes, discounts, refunds, chargebacks and payment-provider reversals, for payments made by a referral within 12 months of their sign-up. Complimentary plans, credits we give away and payments we cannot collect earn nothing. We may change the rate, duration and conditions for future payments at any time by updating this section; earned commissions are not reduced retroactively.
  • Hold and reversal. A commission is held for 14 days after the payment, then becomes available. If a payment is refunded, disputed or reversed, the related commission is cancelled, and if it was already paid out we may deduct it from future commissions or ask for it back.
  • Payout. Available commissions can be withdrawn by bank transfer once they reach 15 USD. You give us the account holder name and bank details in your account; we send the transfer within 10 working days of the request, in USD or its equivalent in the account's currency at our bank's rate. Fees charged by intermediary banks or your bank are yours. Commissions carry no interest and cannot be transferred to another person. Balances under the minimum stay on the account until it is reached.
  • Welcome credits for the referral. A person who creates an account through a referral link receives, once their email address is confirmed, a number of free credits shown on the referral page, valid 30 days and limited in what they can run (text length, strength, versions and Fidelity). They are a courtesy, given once per person, never for accounts we consider duplicates or created on the affiliate's own devices, capped per link, and may be changed or withdrawn at any time. They hold no cash value and are forfeited with the account.
  • Pro month instead of cash. At your choice, five paying referrals who have not been used for an earlier reward and whose commissions have not been paid out can be exchanged for one month of the Pro plan on your account. The exchange replaces the commissions those referrals have earned so far, which are forfeited; later payments by them earn commission as usual. The Pro month is personal, has no cash value and cannot be refunded or transferred.
  • Taxes. You are responsible for declaring and paying any tax, social contribution or fee due on what you earn. We may ask for your identity, address and tax details before paying, and withhold or report where the law requires it.
  • Honest promotion. You may not refer yourself (including through another account, a family member on the same device or a device you control), pay or reward people for signing up, buy traffic that misleads, send spam or unsolicited messages, make claims about the Service, its results or detector outcomes that we do not make ourselves, pose as us, bid on our name or brand in advertising, place the link on sites with illegal or hateful content, or use cookie stuffing, forced clicks or any technique that attributes sign-ups the person did not knowingly make. Links in schools, universities or workplaces must respect their rules.
  • Review, suspension and end. We review commissions before paying and may withhold or cancel any we reasonably believe result from a breach of these rules, from fraud or from payments that were reversed. In case of breach we may end your participation at once and forfeit the balance. We may suspend or end the programme for everyone with 30 days' notice on this page; commissions available at that date remain payable above the minimum, and balances below it are forfeited.
  • Your referrals. We never share a referral's text or account details with you; the dashboard shows a masked email and the amounts paid. Deleting your account forfeits any balance not yet requested.

10. Availability, changes and support

We aim for the Service to be available at all times but do not guarantee it. The Service depends on third-party infrastructure (hosting, GPU capacity, payment and email providers) and may be interrupted, slow, limited or unavailable, including for maintenance, outages, capacity limits, attacks or events beyond our control. Processing time varies with load and text length. We may change, add, limit, suspend or discontinue any part of the Service, including models, engines, limits and features, at any time. Where a change materially reduces a paid plan during a period you have paid for, you may cancel and ask for a pro-rated refund of the remaining period. Support is provided by email on a reasonable-efforts basis.

11. Suspension and termination

You may stop using the Service at any time and delete your account from the account page. We may suspend or terminate your access, with or without notice, if we reasonably believe you have breached these terms, created risk or legal exposure for us or others, failed to pay, or if the law requires it, and we may do so immediately in serious cases. On termination for breach, unused subscription time and credits are forfeited and no refund is due. Sections that by their nature should survive (content and rights, disclaimers, liability, indemnity, governing law) survive termination.

12. Disclaimer of warranties

To the fullest extent permitted by law, the Service and all Output are provided "as is" and "as available", without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, accuracy, completeness, originality, non-infringement, uninterrupted or error-free operation, or that Output will meet your expectations or any standard, requirement or test. You use the Service at your own risk. Nothing in this section limits liability that cannot be limited by law, including for intent or gross negligence, or for death or personal injury caused by our negligence.

13. Limitation of liability

To the fullest extent permitted by law, we and our directors, employees, contractors and suppliers are not liable for any indirect, incidental, special, consequential, exemplary or punitive damages, nor for loss of profits, revenue, business, goodwill, opportunity, grades, admission, employment, reputation or data, nor for any sanction, penalty, rejection, failed examination or disciplinary consequence resulting from your use of the Service or of any Output, however caused and under any theory of liability, even if we were advised of the possibility. Our total aggregate liability for all claims relating to the Service in any 12-month period is limited to the amount you paid us in the 12 months before the event giving rise to the claim, or 50 US dollars if you paid nothing. The exclusions above do not apply to liability for intent or gross negligence, or where the law does not allow them.

14. Indemnity

You will defend, indemnify and hold us harmless from any claim, demand, loss, damage, fine, cost and expense (including reasonable legal fees) arising from your Input, your Output, your use of the Service, your breach of these terms or of the law, or your infringement of the rights of any person, including claims by institutions, employers, clients, publishers or third parties relating to the origin or authorship of a text.

15. Privacy

How we handle personal data is described in the privacy policy, which is part of these terms. Where you submit personal data of other people, you confirm you have the right to do so and you are the controller of that data; we process it only on your instructions to provide the Service.

16. Third-party services and open source

The Service relies on third-party providers (such as Stripe, hosting, GPU and email providers) and open-source software under their own terms. We are not responsible for third-party services, and they are not responsible for the Service. Links to other sites are provided for convenience only.

17. Changes to these terms

We may change these terms. For changes that matter, we will give at least 14 days' notice by email or in the Service before they take effect, except where a change is required by law or needed for security, in which case it may be immediate. Continuing to use the Service after a change takes effect means you accept it. If you do not accept a change, cancel and stop using the Service before it takes effect.

18. Governing law and disputes

These terms are governed by French law, excluding its conflict-of-law rules and the United Nations Convention on Contracts for the International Sale of Goods. Any dispute arising out of or relating to these terms or the Service is subject to the exclusive jurisdiction of the competent courts of the registered seat of the operator in France (for business customers, the Commercial Court of that seat), without prejudice to mandatory consumer protection rules that give you the right to bring proceedings where you live. Before starting proceedings, you agree to write to us and give us 30 days to resolve the matter. If you are a consumer and the matter is not settled within that time, you may refer it free of charge to a consumer mediator, as the French Consumer Code (articles L.611-1 and following) provides; the mediator we have appointed and how to reach them are shown on the contact page and in our replies to complaints. Consumers in the European Union may also use the European Commission's online dispute resolution platform. For consumers, these terms do not remove the protection of the mandatory rules of the country where you live.

19. General

  • These terms, the privacy policy and the cookie policy are the whole agreement between you and us about the Service and replace any earlier agreement.
  • If any provision is found invalid, the rest stays in force and the invalid provision is replaced by a valid one with the closest effect.
  • Our failure to enforce a right is not a waiver of it. You may not assign these terms; we may assign them to a successor of our business.
  • We are not liable for delay or failure caused by events beyond our reasonable control.
  • Notices to you go to your account email. Notices to us go to hello@samesay.app. The English version of these terms prevails over any translation.

20. Contact

Samesay, France. hello@samesay.app.