hearts could almost anything. it could be a fitness app. and because heart icons are used for a lot of things, it would be hard for any of us to know exactly what that icon represents. you could get lucky and someone here might recognize it, but there are thousands upon thousands of apps out there that uses hearts as its icon.......just ask your hubby what it is. it is the easiest way to find out. plus it is better to have an open marriage vs being suspicious all the time. but i'm not married.....so what do i know.