Start with the safest data source
The cleanest way to check follow-back status is to use the Instagram export file you request from your own account. UnFollowTracker reads that file and turns the follower and following lists into an audit you can review.
Understand what one audit can prove
A single upload can show whether an account appears in your follower list and whether you follow them. That is enough to spot current non-followers, but it is not the same as proving exactly when someone changed their behavior.
Use saved audits for change history
If you want to know whether someone stopped following you after a specific date, you need a previous saved audit for the same handle. The newer export can then be compared against the earlier snapshot.
Avoid password-based shortcuts
Tools that ask for your Instagram password may feel faster, but they add account risk and often hide how results are produced. A no-login export workflow is slower, but it is easier to explain and safer to repeat.
Review your latest follow-back status
Upload the ZIP export from Instagram, then use the audit result to review who does not follow you back today. Keep later audits if you want a clearer comparison history.
Start a free audit