Know the Flag has no sign-up. When you first open the app a guest account is created for you automatically, and it is the only account there is. You can delete it — and everything stored with it — at any time.
If you still have the app (fastest)
Open Profile → Delete Account and confirm. Deletion happens straight away; there is no waiting period and no review. The app then starts a fresh guest account so you can keep playing.
If you have already uninstalled it
Write to support@knowtheflag.com from the email address you linked your account to — the one from Sign in with Apple or Sign in with Google. We will find the account by that address and delete it. Please allow a few days for a reply.
What gets deleted
- Your anonymous user identifier
- Your display name and avatar choice
- Your email address, if you linked an Apple or Google account
- Your duel matches, the answers you gave and your leaderboard entries
- Your progress backup — stars, badges and statistics
Deleting from inside the app also erases the progress stored on that device. Nothing connected to you is kept, and deletion cannot be undone.
One thing worth knowing about guest accounts
If you never linked an Apple or Google account and you have already uninstalled the app, there is nothing that can identify your account to us — no email, no name, no device identifier. Such an account holds only a random identifier, a generated nickname like Atlas5197, an avatar choice and game statistics. Reinstalling the app creates a new account; it does not bring the old one back.
Questions
Our full privacy policy explains what the app collects and what it never collects. Anything else: support@knowtheflag.com.