Your workout and reward data is retained for as long as your account is active. You can delete your account at any time from the App's settings.
When you request deletion, your account enters a 7-day soft-delete grace period. During this window your account is signed out and inaccessible, but your data is still recoverable. If you sign in again with the same Apple ID within 7 days, the deletion is cancelled and your account is restored.
After the 7-day grace period, your account and all associated data is permanently and irreversibly deleted from our servers, including: account information, workout records, reward ledger entries, preferences, and streak history. A daily background job finalises deletions for accounts that are not restored.
To complete the deletion process at the Apple level, we recommend you also revoke MoveFirst's access to your Apple ID at appleid.apple.com under "Sign in with Apple" → MoveFirst → "Stop using Apple ID".