Remove Pin Code From User Login

When my app user logs in to the app, they are required to enter a pin code every time they log in. Is there a way to remove this? He is unable to stay logged in after he has used the app and has to log in and enter the code each time. How can I prevent this?

you cant… but you can add sign in with google for faster log in

This should not happen unless he has an automation that removes his browsing history, as far as I aware.