How do I set up quick-sign-in?
How to set-up a quick sign-in with Face ID, Touch ID or passcode
After you have created an account on the Calcium app you can set up quick sign-in. To do this you need to quit out of the app on your device and re-open it. Once you re login to your account you will be given an option to turn quick sign-in on. Click on the quick sign-in option of your choice.
Once you have chosen a quick sign-in option you will be all set! Enjoy your quick sign-in!
If you’ve already done this and it’s no longer working or you dismissed the quick sign when you registered, try manually signing out and back in to receive the prompt again.