If you sign up using an email and password combination you will be prompted to use Face ID. If you selected not to use Face ID, you can turn this on in your Account Profile.

Simply login to the app and go to the menu in the top right corner.

From there, click on ‘Account Profile’ and scroll to the bottom of the screen. There you will see an option to toggle Face ID on and off.

If you do not see the toggle for Face ID it means that you signed onto the app using the ‘Sign In with Google’ or ‘Sign In with Apple’ options.