Support

Need help with GreatLogos? We're glad to assist.

The fastest way to reach us is by email — we typically respond within a few business days:

Please include your device model and iOS version, and a short description of what you were doing, so we can help quickly.

Common questions

Do I need an account?

No. GreatLogos works fully offline without an account. Signing in with Apple is optional — it unlocks the AI tutor and syncs your notes, highlights, and reading progress across your devices.

How do I use the AI tutor?

Open any book, then tap the tutor to start a conversation about what you're reading. The tutor requires either signing in (free during the beta) or adding your own Anthropic API key in Settings → AI Tutor.

How do I delete my data?

In the app: Settings → Account → Delete Account. This permanently deletes your account and synced data from our servers. You can also simply stop using an account — if you never sign in, no data leaves your device.

I'm a beta tester — where do I send feedback?

Use the in-app Send Feedback option in Settings, or email us directly. Feedback on the AI tutor is especially welcome.

For details on how we handle your data, see our Privacy Policy.