Privacy-first, by design. hypatia is built so that your study data stays on your iPhone or iPad. We do not run servers that collect your conversations, we do not use analytics or tracking, and we never sell your data. This policy explains what the app handles and how.
1. Who we are
hypatia (“the app”, “we”, “us”) is an iOS study companion. This Privacy Policy applies to the hypatia application distributed on the Apple App Store. If you have any question, you can reach us through our support page.
2. Data stored on your device
The following is created and stored locally on your device, in the app’s private storage. It is never uploaded to a server operated by us:
- Conversations with the AI tutor.
- Notes and lessons you write or import (including text extracted from imported photos, PDFs or documents).
- Quizzes generated from your conversations or lessons, and your answers.
- Your profile (the name you enter, an optional self-description, and your school level).
- App settings (language, theme, chosen AI provider).
This data remains under your control. Deleting the app removes this locally stored data from your device.
3. Credentials & secure storage
If you connect a remote AI provider, the API key you enter is stored in the iOS Keychain, the system’s encrypted credential store. It is not exposed in plain text and is not transmitted to us.
4. AI processing & third-party providers
hypatia does not include its own AI model server. To generate answers, you choose how the AI runs:
On-device AI (no data leaves your device)
- Apple Intelligence (iOS 26+) — runs on-device, subject to Apple’s terms.
- Local model (Qwen 3.5) — downloaded once and run entirely offline on your device.
Remote AI providers (data is sent to a third party)
If you configure a remote, OpenAI-compatible provider (for example OpenRouter or Groq, or any endpoint you enter), then the content needed to answer your request — the relevant message text, and any image or document content you attach — is sent directly from your device to that provider over an encrypted (HTTPS) connection, so it can generate a reply.
That data is handled under your chosen provider’s own privacy policy and terms, not ours. We recommend reviewing the policy of the provider you select. We do not receive a copy of this traffic.
If you only use on-device options, no conversation content is sent to any external service.
5. Camera, photos & text recognition (OCR)
You may attach an image of an exercise from your camera, photo library or clipboard, and you may run text recognition on a copied image. Text recognition uses Apple’s on-device Vision framework and does not send your images to us.
If you then send that image or extracted text to a remote AI provider (see section 4), it is transmitted to that provider to produce a reply. Camera and photo access is requested only when you use these features, and is governed by the standard iOS permission prompts.
6. Analytics & tracking
hypatia contains no analytics SDKs, no advertising, and no tracking. We do not build a profile of you, and we do not track you across other apps or websites.
7. Contacting support
If you contact us through the form linked on our support page, the information you choose to provide (such as your email address and your message) is processed by Google Forms so we can read and reply to your request, under Google’s privacy policy. Please share only what is necessary to help you.
8. Children’s privacy
hypatia is a study tool that may be used by students, including minors. The app does not require an account and does not collect personal information on our servers. Conversations and lessons stay on the device as described above.
Because remote AI providers process the text you send them, we recommend that younger students use the app with a parent, guardian or teacher, and that families prefer the on-device AI options when they wish to keep all content on the device. Please avoid entering sensitive personal information into the chat.
9. Your choices & control
- Choose where AI runs — pick an on-device model to keep content on your device, or a remote provider for more capable models.
- Delete your data — remove individual conversations, notes or quizzes in the app, or delete the app to remove its local data.
- Manage permissions — camera and photo access can be changed at any time in iOS Settings.
10. Changes to this policy
We may update this Privacy Policy as the app evolves. When we do, we will revise the “Last updated” date at the top of this page. Significant changes will be reflected here before they take effect.
11. Contact
For any question about this Privacy Policy or your data, please reach us through our support page.