Follow Back is an free app to find your Instagram unfollowers (People who don't follow you back). With this app you can easily manager your Instagram account. And guess what all the features of Follow Back are totally free.
What can Follow Back do?
• Non-Followers or Unfollowers - Find people who don't follow you back on Instagram.
• Follow/Unfollow people directly from the app and as much as you want. You don't have to pay a penny to unfollow/follow people.
• Fans - Find people who are following you but you don't follow them back.
• Recent Unfollowers - Find people who unfollowed you on Instagram recently.
• Whitelist - Add people you don't want to unfollow to the whitelist and they won't appear in your unfollowers list.
• Your Mutual Followers
• Find fake users in your Instagram account (People who doesn't have any profile pictures)
• You can add upto 3 Instagram accounts simultaneously.
Disclaimer: This app is by no means affiliated to Instagram