Like Patrol - which launched in July - was described by its founder Sergio Luis Quintero as "the defunct 'Following' Tab, on steroids", but now the Facebook-owned photo sharing site is fighting back.
In a statement to CNET, a spokesperson said: "Scraping violates our policies, and we take action against companies who we find to be engaging in it.
"Like Patrol was scraping people's data, so we are taking appropriate enforcement action against them."
Instagram's 'Following' tab allowed users to see whose posts their friends like, and what comments they left on other feeds.
Meanwhile, Like Patrol had promised to send notifications anytime a follower likes a post or comments, and this information is then broken down by gender along with a list of who a person interacts most with.
On its website, the company said: "New guy? New girl? What are they up to on Instagram?"