I use the app as well, well a different app. The one that I was using that was a free app was a little messed up. I ended up unfollowing a ton of people that were actually following me. The one I use now is $1 a month and works way better. I haven’t used it in awhile but plan on it soon to even out my ratio.
Instagram follower tips: if they have more followers than they follow they will either unfollow you or never follow you back to begin with.
When I’m in a loop I never really follow anyone back. The loop is for the people in the loop to gain, to people joining in the loop - not so much.