Plans
Every plan includes all of it.
Yes — from your account page once your subscription is running, or email support@osteon.app any time. You keep full access through the term you've already paid for, and it won't renew.
They all open exactly the same thing; longer terms simply cost less per month. Pick the one that matches how long you plan to study.
Yes. Your review schedule, mastery, and answer history live in your account and follow you across every device.
A Google account. There's no separate password to create.
Cancel any time. Access runs to the end of the term you've paid for, and won't renew. By subscribing you agree to the Terms and Privacy Policy.