Hello Heart asks for your password on every login to make sure your information stays safe and secure. If you're not the kind of person that likes to type passwords every single time and would like to save time on login, please use the instructions below (but please, please make sure no one has access to your phone and your medical info!)
If Touch ID (or Face ID on iPhone X) is set up on your iPhone, you'll be able to use it to log in to Hello Heart. You will need to login to Hello Heart manually once, and then on your next log in, you'll be able to log into Hello Heart with Touch ID or Face ID.
If Touch ID or Face ID is not working on Hello Heart, please delete Hello Heart from your iPhone and reinstall it from the App Store. Then log in once, and Touch ID (or Face ID) should then work as expected from then on. Sorry 'bout that :-)