I had the same issue with my business account — it was frustrating to see followers disappear without knowing who they were. One tool I found particularly helpful is Unfollowers Tracker. It gives you a clear list of who unfollowed you, and it updates in real time. I was surprised how accurate it was compared to others. It doesn’t flood you with ads or ask for unnecessary permissions. After using it for a few weeks, I even cleaned up my own list and unfollowed inactive users. The interface is really user-friendly too. Highly recommend checking it out if you're serious about managing your follower base.