Terms of Service

Effective October 23, 2026 · Version 2026-10-23

1. Agreement

These Terms of Service (“Terms”) are an agreement between you and the PolyChronicle team (“PolyChronicle”, “we”, “us”) about your use of the PolyChronicle website, applications and related services (the “Service”). By creating an account or using the Service you agree to these Terms, our Privacy Policy and our Content & Safety Policy, which form part of these Terms. If you do not agree, please don’t use the Service.

2. Who can use PolyChronicle

You must be at least 13 years old, and old enough to agree to these Terms where you live, to create an account. If you use the Service on behalf of a school, company or other organisation, you confirm you are authorised to accept these Terms for it, and “you” includes that organisation. You may not use the Service if you are barred from doing so under applicable law.

3. Your account

• Give accurate information when you sign up and keep your email address current.
• Keep your password private and use one you don’t use elsewhere. You are responsible for activity under your account.
• Tell us promptly at privacy@polychronicle.app if you think someone has accessed your account without permission.
• One person per account. Don’t sell, share or transfer accounts, or create accounts by automated means.

4. What PolyChronicle does

When you ask about a historical event, the Service checks the request, researches the topic using AI models and web search provided by Google, writes a short storyboard, designs simple three-dimensional models for the people, places and objects involved, and animates the result in your web browser. The finished animation is saved to your library as an animated video together with a still image, your question, the research notes, the storyboard and the list of sources. We describe this processing in more detail in our Privacy Policy.

The Service is provided free of charge at this time. We may add, change or remove features, and we may introduce paid plans in future; we will tell you before anything you use becomes paid.

5. Accuracy and educational use

Videos are produced automatically with the help of AI and are simplified to fit into 20–60 seconds. They may contain errors, omissions, anachronisms or contested interpretations, and the visual models are stylised representations, not historically exact reconstructions. Sources can disagree, and AI systems can misread or misstate them.

Use videos as a starting point for learning, not as authoritative references. Check the listed sources, and consult qualified experts or primary materials before relying on any detail for study, publication, legal, medical, financial or other important decisions. We do not endorse the content of third-party sources.

6. Acceptable use

You agree not to use the Service to:

• request or create content prohibited by our Content & Safety Policy, including hateful, sexual, graphically violent or harassing content;
• glorify, deny or trivialise atrocities, or create propaganda for violent or extremist groups;
• impersonate others, harass identifiable private individuals, or request personal information about private people;
• attempt to bypass, probe or disable our safety checks, rate limits or security, including through prompt injection;
• scrape, overload or reverse-engineer the Service, or access it through automated means other than a normal web browser;
• break any law, or infringe anyone’s intellectual property, privacy or other rights;
• present videos as authoritative fact in a way intended to mislead, or remove indications that a video was made with AI assistance in order to deceive.

7. Your questions and videos

Your input

You keep any rights you have in the questions you submit. You grant us a worldwide, non-exclusive, royalty-free licence to host, store, reproduce, process and display your questions and the resulting videos as needed to operate, secure and improve the Service and to comply with law. This licence ends when the content is deleted from our systems, except where we must keep it as described in our Privacy Policy.

Your videos

As between you and us, and to the extent we have rights in them, we assign to you our rights in the videos generated for you, and you may use, download and share them for any lawful purpose. Because videos are generated automatically, similar requests may produce similar results for other people, and some jurisdictions may not grant copyright in AI-assisted output. Please attribute “Made with PolyChronicle” where practical and keep the source list with the video when you share it for educational purposes.

Responsibility

You are responsible for your questions and for how you use and share your videos.

8. Our software, fonts and designs

The Service — including its software, renderer, visual design, the Facet and Tessera typefaces, logos and example materials — is owned by us or our licensors and protected by intellectual-property laws. Except for your own videos as described above, you may not copy, modify, distribute or create derivative works from the Service or its typefaces without our written permission. Feedback you send us may be used without obligation to you.

9. Third-party services and sources

The Service relies on third-party providers, including Google (AI models and search grounding), TigerData (database hosting) and our web hosting provider. Videos link to third-party websites that we do not control and are not responsible for. Your use of third-party sites is governed by their own terms and policies.

10. Review, refusal and removal

We automatically screen every request before research begins and screen the generated storyboard before it is saved. We may decline any request, stop a video from being made or saved, remove content, or limit or suspend accounts if we reasonably believe that content or conduct breaks these Terms, creates risk for others, or is required by law. We keep records of requests, decisions and videos as described in our Privacy Policy so that we can investigate abuse and improve safety. Automated systems are not perfect; if you think we made a mistake, contact us.

11. Usage limits and changes

To keep the Service available to everyone we apply limits, which currently include a maximum library size and storage limits for saved files. We may change limits at any time. We may also change, suspend or discontinue the Service or any part of it; where reasonable we will give notice and an opportunity to download your videos.

12. Ending your use

You may stop using the Service and delete your account at any time from your account page. We may suspend or end your access if you materially or repeatedly break these Terms, if required by law, or if we discontinue the Service. Sections 5, 7 (licences needed to complete deletion), 8, and 13–16 survive termination.

13. Disclaimers

THE SERVICE AND ALL CONTENT ARE PROVIDED “AS IS” AND “AS AVAILABLE”. TO THE FULLEST EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF ACCURACY, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT, AND ANY WARRANTY THAT THE SERVICE WILL BE UNINTERRUPTED, SECURE OR ERROR-FREE OR THAT VIDEOS WILL BE HISTORICALLY ACCURATE OR COMPLETE. Some jurisdictions do not allow certain disclaimers, so some of these may not apply to you.

14. Limitation of liability

TO THE FULLEST EXTENT PERMITTED BY LAW, WE WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF DATA, PROFITS, REVENUE OR GOODWILL, ARISING FROM OR RELATED TO THE SERVICE. OUR TOTAL LIABILITY FOR ALL CLAIMS RELATING TO THE SERVICE IS LIMITED TO THE GREATER OF THE AMOUNT YOU PAID US IN THE TWELVE MONTHS BEFORE THE CLAIM OR US $50. Nothing in these Terms limits liability that cannot be limited by law, including for fraud or for death or personal injury caused by negligence.

15. Indemnity

To the extent permitted by law, you agree to indemnify us against third-party claims, losses and reasonable costs arising from your misuse of the Service or your breach of these Terms. This does not apply to consumers where prohibited by law.

16. Governing law and disputes

These Terms are governed by the laws of the State of New York, United States, without regard to conflict-of-law rules. Courts located in New York shall have exclusive jurisdiction, except that if you are a consumer living elsewhere you may also have the right to bring claims in your local courts and to benefit from mandatory consumer protections where you live. Before filing a claim, please contact us so we can try to resolve the issue informally.

17. Copyright concerns

If you believe content on the Service infringes your copyright, email privacy@polychronicle.app with: your contact details; a description of the work; the location of the material on the Service; a statement that you have a good-faith belief the use is not authorised; a statement, under penalty of perjury, that your notice is accurate and that you are authorised to act; and your physical or electronic signature. We may remove material and terminate repeat infringers.

18. Changes to these terms

We may update these Terms. If a change is material we will notify you in the Service or by email before it takes effect, and we record which version you accepted. Continuing to use the Service after changes take effect means you accept them; if you don’t, please stop using the Service and delete your account.

19. Contact

Questions about these Terms: privacy@polychronicle.app.