GreatLogos
Support
GreatLogos is a reader for the Great Books, public-domain classics from antiquity to the modern era, with an optional AI tutor to help you think through what you read. Have a question or hit a problem? Send it to us below and we will reply by email.
Common questions
Does GreatLogos require an account?
On iOS, no. The iOS app works without an account: you can read, highlight, take notes, and follow reading plans without signing in, and that data stays on your device. The web app requires an account to read. You need an account to sync across devices, use the AI tutor, or join a class with an educator.
How do I sign in?
Sign in with your email address, in the iOS app and on the web. We email you a one-time code, or you can use a password if you have set one. The same account works on every device.
How does the AI tutor work?
The tutor is optional and requires signing in. When you send it a message, your message and the context of what you are reading (the book, the passage, and your notes for that work) are sent to our service, which uses Anthropic's Claude API to generate a reply. We never use your conversations to train models. See our Privacy Policy for exactly what is sent. Some tutor features are part of a paid subscription.
How do I manage or cancel a subscription?
On iOS, subscriptions are handled by Apple: open Settings, then your name (Apple ID), then Subscriptions, select GreatLogos, and change or cancel it there. On the web, manage or cancel your subscription any time in your account settings. You can restore an iOS purchase from the paywall or Settings if you switch devices.
Where do the books come from?
Every text in GreatLogos is in the public domain in the United States, most of them from Project Gutenberg. We use historically respected, public-domain translations and verify each one before bundling it.
Can I read on iPhone, iPad, Mac, and the web?
Yes. With an account, your highlights, notes, and reading progress sync across your devices and the web automatically when you are online.
How do I delete my account and data?
In the iOS app or on the web, go to Settings, then Account, then Delete Account, and type “delete” to confirm. This deletes your account and all your synced data from our servers. The action is final and cannot be undone. Data stored locally on your device is removed as well.
I am an educator. How do I set up a class?
Go to Settings, then Account, then Become Educator to upgrade your account. As an educator you can create classes from the Educator dashboard and share a join code with your students.
My highlights or notes disappeared
If you are signed in, your data is backed up on our servers. Pull to refresh on the library screen to force a sync. If something is still missing, send us your account email and roughly when it disappeared, and we will investigate.
Privacy and data
See our Privacy Policy for full details on what is collected, how it is used, and your rights. In short:
- The iOS app works without an account, and that data stays on your device.
- If you sign in, your reading data syncs to our servers.
- If you use the AI tutor, your messages are sent to Anthropic to generate replies.
- We do not collect location or contacts, we serve no ads, and we do not track you across other apps or websites.