Privacy policy

Last updated 10 November 2026.

Who is responsible

The controller under Art. 4 (7) GDPR is Patryk Wisniewski, Austria, hello@learncave.app. Write to this address for any question about your data.

What we store and why

• Your account: email address, name and sign-in sessions. Needed to give you your own account (Art. 6 (1) (b) GDPR).
• What you put in: notes, topics, saved links and the text fetched from them, uploaded PDFs, flashcards, quiz questions, your recall answers, summaries and chats. Needed to provide the service (Art. 6 (1) (b) GDPR).
• Your learning progress: review dates, scores, streaks and settings, so LearnCave can schedule your reviews (Art. 6 (1) (b) GDPR).
• Access keys: when you connect ChatGPT, Claude or the browser extension, a key is stored so that app can act for you. You see and revoke every key in Settings.

We keep this data as long as your account exists. When you delete your account in Settings, everything is deleted for good.

We use no analytics, no advertising and no tracking.

Connecting ChatGPT or Claude

If you connect LearnCave to ChatGPT (OpenAI) or Claude (Anthropic), that app reads and writes your LearnCave data when you ask it to: for example it searches your notes, creates flashcards or records a quiz answer. What you share in that chat is processed by OpenAI or Anthropic under the terms you agreed to with them. You can disconnect at any time in that app and revoke its key in LearnCave Settings.

Hosting

LearnCave runs on a server of Hostinger International Ltd. (Cyprus) in Germany. Your data is stored there. To deliver the pages, the server necessarily processes your IP address and request data (Art. 6 (1) (f) GDPR, legitimate interest in a working and secure service).

Other services we use

• Sign-in emails: sign-in links and the reminders you switch on are sent through Resend, Inc. (USA), which receives your email address and the message. Transfers to the USA rely on the EU-US Data Privacy Framework or standard contractual clauses.
• AI features inside LearnCave: when you use summaries, explanations or quiz generation inside LearnCave itself, the relevant text is sent to Anthropic PBC (USA). Read-aloud with natural voices sends the text to OpenAI, L.L.C. (USA). Neither uses it to train models under their API terms.
• Saved links: when you save a web page, video or document, our server fetches it from its website (for example YouTube or Google Docs); that website sees our server, not you. Pictures and embedded videos of a saved item load from their original website when you open it.

Cookies

LearnCave only sets cookies it needs to work: your sign-in session (up to 60 days), your theme, and for the sample account a one-day cookie. No consent banner is needed because nothing else is stored on your device.

Your rights

You have the right to access, rectification, erasure, restriction of processing, data portability and objection (Art. 15–21 GDPR). You can export everything as Markdown and delete your account yourself in Settings, or write to hello@learncave.app. You may also complain to the Austrian Data Protection Authority (Datenschutzbehörde, dsb.gv.at).