Neron App Studio / Neurons / FollowAlerts
Who followed and unfollowed you
FollowAlerts is a third-party tool for Instagram users to look into their interactions: follower changes, account statuses and more. It is an Android app on Google Play, and it is not affiliated with Instagram.
FollowAlerts · Free · Android
What it does
Follower analysis
See who unfollowed you.
Block discovery
Find out who blocked you.
Account statuses
See who has deactivated their account.
Questions people ask
Can I download it now?
On Android, yes: FollowAlerts is on Google Play.
Is it made by Instagram?
No. The store listing calls it a third-party tool for Instagram users.
What does it cost?
The Google Play listing says the app contains ads and offers in-app purchases.
What does it do with my data?
Its privacy policy is linked on this page under the fine print, the same one the Google Play listing links.