Apple has removed the app-discovery program AppGratis from the iOS App Store, saying in a statement that the company behind the app violated two developer rules, one of which was only recently added. Originally thought to have gotten in trouble for breaking a rule that said that apps that promote other apps "in a manner similar to or confusing with the App Store will be rejected," Apple later clarified that AppGratis was promoting apps whose developers had paid for them to do so, and were also abusing push notification rules.