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Last updated April 23, 2026

Terms of Service

These Terms of Service (“Terms”) govern your access to and use of Chapterlet (the “Service”), operated by [YOUR LEGAL NAME] (“we”, “us”, or “our”). By creating an account or using the Service, you agree to these Terms. If you do not agree, do not use the Service.

1. The Service

Chapterlet is an AI-powered learning platform. You pick a topic; we generate a structured curriculum of lessons using third-party artificial intelligence services; you read lessons, chat with AI about them, take notes, and track your progress. Lessons and chat responses are generated or enhanced by AI models.

2. Eligibility and accounts

You must be at least 16 years old to use the Service. The Service is not directed to children under 16, and we do not knowingly collect personal information from them.

You are responsible for maintaining the confidentiality of your account credentials and for all activity under your account. We use Google sign-in for authentication; your use of Google’s services is governed by Google’s own terms.

3. Subscriptions, billing, and cancellation

Parts of the Service require a paid subscription. Prices, billing frequency, and any trial period are disclosed on our pricing page at the time of purchase. By starting a paid subscription, you authorize us (and our payment processor, Stripe) to charge your payment method on a recurring basis until you cancel.

You may cancel your subscription at any time from your account settings. Cancellation stops future renewals; access continues through the end of the current billing period. We may change our pricing on 30 days’ notice; changes apply to renewals after the notice period.

Refunds are governed by our Refund Policy.

4. AI-generated content — important disclaimer

Lesson content and chat responses on the Service are generated or substantially assisted by artificial intelligence models. AI output may be inaccurate, incomplete, biased, outdated, or misleading. You should independently verify any information you rely on.

The Service is for general educational and informational purposes only. It is not a substitute for professional advice. Nothing on the Service constitutes medical, legal, financial, tax, psychological, or other professional advice, and you should not act on it without consulting a qualified professional. We are not liable for any decision you make based on Service content.

5. Acceptable use

You agree not to:

  • Use the Service to generate, request, or share content that is unlawful, hateful, harassing, defamatory, sexually explicit, exploitative of minors, or that incites violence
  • Attempt to extract, reverse-engineer, or circumvent the underlying AI models, prompts, or the Service’s security measures
  • Use the Service to build a competing product or to train a machine-learning model
  • Resell, sublicense, or commercially redistribute Service content without our written permission
  • Scrape, bulk-download, or automate access to the Service outside of normal interactive use
  • Interfere with the Service’s operation, probe for vulnerabilities, or exceed any rate limits we impose
  • Impersonate another person or misrepresent your affiliation with any entity

We may suspend or terminate accounts that violate these rules, with or without notice.

6. Your content

You retain ownership of the topics you submit, the notes you write, and the messages you send in chat (collectively, “Your Content”). You grant us a worldwide, non-exclusive, royalty-free licence to host, store, transmit, and process Your Content as necessary to provide and improve the Service, including by sending it to the AI providers we use to generate responses.

You are responsible for Your Content and must have the rights to submit it. Do not submit anything confidential, sensitive, or regulated (e.g., health records, credit-card numbers) that you are not comfortable being processed by third-party AI services.

7. Our content and intellectual property

The Service, including its design, software, branding, and the prompts and pipelines that produce AI output, is owned by us or our licensors and is protected by intellectual property laws. We grant you a limited, non-exclusive, non-transferable, revocable licence to use the Service for your personal, non-commercial learning use while your account is in good standing.

AI-generated lesson content is made available to you under that same licence. Because of the legal uncertainty around AI-generated works, we make no warranty as to copyright ownership of AI output and disclaim responsibility for any claim that AI output infringes a third party’s rights.

8. Third-party services

The Service is built on third-party services including, without limitation, Google (authentication), Anthropic and OpenAI and xAI (AI models), Vercel (hosting and analytics), Turso (database), and Stripe (payments). Your use of those services is subject to their own terms. We are not responsible for their availability, content, or practices.

9. Warranty disclaimer

THE SERVICE IS PROVIDED ON AN “AS IS” AND “AS AVAILABLE” BASIS. TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, ACCURACY, UNINTERRUPTED OR ERROR-FREE OPERATION, AND SECURITY. WE DO NOT WARRANT THAT AI OUTPUT IS ACCURATE, COMPLETE, OR SUITABLE FOR ANY PURPOSE.

10. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE AND OUR OFFICERS, CONTRACTORS, AND SUPPLIERS WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, REVENUE, DATA, GOODWILL, OR OTHER INTANGIBLE LOSSES, ARISING OUT OF OR RELATING TO THE SERVICE.

OUR TOTAL AGGREGATE LIABILITY FOR ANY CLAIM RELATED TO THE SERVICE WILL NOT EXCEED THE GREATER OF (A) THE AMOUNTS YOU PAID US IN THE TWELVE (12) MONTHS BEFORE THE EVENT GIVING RISE TO THE CLAIM, OR (B) ONE HUNDRED CANADIAN DOLLARS (CA$100).

Some jurisdictions do not allow the exclusion or limitation of certain damages; in those jurisdictions, our liability is limited to the greatest extent permitted.

11. Indemnification

You agree to indemnify and hold us harmless from any claim, loss, damage, or expense (including reasonable legal fees) arising from (a) Your Content, (b) your use of the Service, (c) your violation of these Terms, or (d) your violation of any law or third-party right.

12. Termination

You may stop using the Service and delete your account at any time. We may suspend or terminate your access to the Service at any time, with or without notice, if we reasonably believe you have violated these Terms, if required by law, or if continuing to serve you creates material risk to us or to other users.

On termination, your licence to use the Service ends. Sections that by their nature should survive termination (including IP, disclaimers, limitation of liability, indemnification, and governing law) will survive.

13. Changes to these Terms

We may update these Terms from time to time. We will post the updated Terms on this page and update the “last updated” date. If changes are material, we will notify you by email or in-app notice at least 30 days before they take effect. Continuing to use the Service after the effective date constitutes acceptance of the updated Terms.

14. Governing law and disputes

These Terms are governed by the laws of the Province of Ontario and the federal laws of Canada applicable there, without regard to conflict-of-laws rules. The courts located in Ontario have exclusive jurisdiction over any dispute arising out of or relating to these Terms or the Service, and you consent to that jurisdiction and venue.

15. Contact

Questions about these Terms can be directed to support@chapterlet.com.