See who a public Instagram account recently followed, and know the moment it changes. No login, ever.
Type a username. FollowBell reads what that public account follows, counts how many are women and how many are men, and watches it from then on.
When it follows or unfollows somebody, your phone says so. Every change is kept in a journal that does not rewrite itself.
It never asks for your Instagram password and never signs in on your behalf. It reads only what Instagram shows to anyone opening that profile.