Who doesn't follow me back?

The not-following-back list is the one thing you canknow from a single look at your account — no history required. It’s pure set math: everyone in your following list who isn’t in your followers list.

Do it without giving anyone your password

Your Instagram data export contains both lists. Upload it to Unfollo and you immediately get three clean groups:

• Real Ones — mutuals, you follow each other
• Celebrities— you follow them, they don’t follow you
• Fans— they follow you, you don’t follow back

One honest caveat

Someone not following you back is not the same as someone having unfollowed you — they may never have followed you in the first place. Telling those apart requires comparing snapshots over time, which is exactly what Unfollo does once you save your baseline.