My tool is based on a local database, the data associated with the session and followers/followers are stored directly on your browser, which is a change from the first version at the beginning of the year which pushed me to close the service because it was too greedy in server resources.

We've updated our unfollower tracker tool to unfollow back. Everything is done client-side on your smartphone or computer (in your web browser), no data is stored on our server! unfollow.blue

I signed up for free early this morning and am liking it so much I signed up for Pro. I'm a sucker for a discount! 😄 Thanks @unfollow.blue 🌼