DRAFT: needs a human legal review.

ViStud keeps your account, your courses, your notes, your files, your class recordings, and what you study. The words and the files are stored encrypted. The keys that open them are kept in a separate database, not next to the notes.

Backups of your courses and files are kept for 35 days. Backups of those keys are kept for 7 days. Ordinary logs are kept for 30 days. When an account is deleted, a record of that deletion is kept indefinitely. It holds only ids and times, never your words, so a restored backup can be deleted again.

A chat with the AI includes your first name (from your account), so it can call you by it, and what you wrote about yourself or told it to remember. Never your full name or your email address.

Your AI key is yours. A chat is sent with that key, on your own account at the provider the key belongs to. An OpenRouter key is sent to OpenRouter, which passes the chat to the model you chose. Their terms:

• OpenRouter: privacy and terms
• OpenAI: privacy
• Anthropic: privacy
• Google: privacy

If you have no key of your own and this copy of ViStud offers a shared key, your chats are sent with the shared key instead: on the account of the person who runs this copy, to OpenRouter and the one model they chose, with a daily limit. OpenRouter's terms above apply. Add your own key at any time to stop using it.

Mail about your account, such as an invitation or a confirmation link, is sent by the email service chosen for this copy of ViStud. The computer ViStud runs on is looked after by the same person. Ask them which email service and which host they use, and read those terms.

A class recording includes the voices of everyone in the room. Record only when those people have agreed.

You can export a note from its page, as a PDF, a Word file, Markdown, or plain text. To delete your account, open Settings, then Your data, and ask for deletion. You are signed out. For 3 hours the deletion waits. Then your notes, files, recordings, and keys are deleted. Copies in backups then expire: the notes within 35 days, and the keys within 7 days. After the keys expire, an old backup cannot be read.

Questions go to the person who invited you.