Open Instagram and go to your profile
Tap Followers to see your current follower list
Compare your current follower list with an older saved list or screenshot
Search for the person’s username in your Followers list
Check whether you still follow them and whether they still follow you
Use Instagram Insights if you have a professional account to monitor follower changes over time
Use a trusted third-party follower tracking app if you choose to, and review recent unfollowers
Be cautious with third-party apps and avoid giving your password to untrusted services
Repeat the comparison regularly to track new unfollows