Want to know who has ‘Unfollowed’ you on Twitter? Sayonara is an iOS  app that will let you see just who doesn’t want to see your tweets anymore.

The $1.99 app will send you push notifications when someone unfollows you. The notification includes the name of the person’s Twitter handle, as well as their bio, recent tweets and tools to either follow, unfollow or even block that Twitter account. There is even a feature that lets you direct message the person who has unfollowed you on Twitter and ask them why they have stopped following you directly from within the app.

The tool works for all of your Twitter accounts, so if you handle multiple Twitter handles, you don’t have to worry about buying the app multiple times.