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Opening You
Study without signing in. Link a sign-in method to recover your progress and use it on another device.
Your sign-in details and progress in this browser.
Link your email to recover your progress and continue on another device. No password is needed.
Linking is optional. You can keep studying without signing in.
We send a one-use code or link to your email address. Use it to prove the address belongs to you, without creating a password.
Your account already exists — it has existed since your first visit, without a name on it. Adding an email puts a name on that account and keeps the same one underneath, which is what makes a purchase, a run of days and a year of answers follow the person rather than the login.
Your progress is kept with your account. Sign in with the same account on another device to sync it.
Check the sync status before switching devices or clearing browser data.
No changes are waiting to upload from this browser.
We are not told which machines have your account open, so a table of them would be invented. What we can tell you is what this browser is still holding, and that is what is above.
Deletion removes your study history and cannot be undone. You can take a copy first.
The next page explains which local and synced data will be removed and any subscription steps you need to take before confirming.