Privacy Policy

Last updated: October 20, 2026

Short version: Bertopia doesn't collect your personal info. No accounts, no ads, no tracking. Here's the longer version.

Who we are

Bertopia is made by 73ai.org ("we", "us"). This policy covers the Bertopia app on Android, iOS and macOS, and this website.

What we collect

Nothing that identifies you. You don't need an account. We don't ask for your name, email, location, contacts or photos.

What stays on your device

Your packs, cards, study progress and settings are saved on your device only. We can't see them. If you delete the app, they're gone.

Downloading packs

When you download a pack from the Bertopia store, your device asks our file host (Cloudflare) for it. Like any web server, it may briefly log basic technical stuff such as your IP address and the time of the request. We don't use this to figure out who you are, and we don't combine it with anything else.

Files you import

If you import an Anki file, it's read and stored on your device only. It's never uploaded to us.

Ads, analytics and tracking

None. We don't use ads, analytics tools or trackers, and we don't sell or share data with anyone.

Kids

Bertopia is made for everyone, including kids. Since we don't collect personal info from anyone, we don't collect it from children either. Parents, if you ever have a question, just reach out.

Changes

If we change this policy, we'll update this page and the date at the top.

Contact

Questions? Email us at team@73ai.org.