If you had an account on your old phone, your habits are waiting in it. Just log in on the new one.
- Install just streak on your new iPhone and open it.
- On the welcome screen, tap I already have an account.
- Log in the same way as before: Apple, Google, or your email and password.
Your habits, streaks and badges come back once the app syncs. Use the same sign-in method you used before, so you land in the same account.
Have Plus? Open the Profile tab, tap Settings, then Restore purchases. See Restore your purchase.
Used the app as a guest? Guest habits are stored only on the phone itself. If you still have the old phone, create an account there first (Profile › Create account), give it a moment to sync, then log in on the new phone. If the old phone is gone and you never created an account, we're sorry, there's no copy we can restore.
Already started fresh on the new phone? When you log in, you'll be asked which habits to keep. See The data conflict screen.