To access your account on a new phone, or if you re-install the app after deleting it, you'll need to complete a quick account recovery process to verify your identity again.
If you're restoring the apps linked to your previous device, you'll just need to delete and re-install the Tide app. For security reasons, entering your passcode on a 'restored’ version of the app won't work.
To begin the account recovery process, open the app and tap "I already have an account" at the bottom of the screen.