IG Track, an Instagram Tracker, offers insight for Instagram user to follow and unfollow easily.
App ask for an google account to login, so that's a redflag for me. You can't unfollow or delete people that "you don't follow back", you can only unfollow people that "don't follow you back". I was looking for something to delete followers that I don't follow. Overall seems to work and legit. "The maximum number of free account to track is 500, you can upgrade to Pro, the maximum number of track is 10000"
BestApp's
https://gmapsscraper.com
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Insta Detective
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BeSocialTools
GoodApp's
majewskkik