Following reports that app recommendation service AppGratis had its iOS application pulled from the App Store, Apple (AAPL) is reportedly getting ready to crack down on numerous apps that have quietly been violating Apple’s terms and conditions. According to multiple unnamed sources speaking with AllThingsD, Apple pulled AppGratis from the Store for violating two clauses in its App Store Review Guidelines, one that forbids apps from promoting other companies’ software and a second that bars developers from sending marketing messages using push notifications. The blog’s sources say Apple is getting ready to crack down on other apps that violate these two clauses — though it would be nice if Apple were to fix its own “Genius” app recommendation system, which is still absolutely awful despite a recent overhaul, before ousting similar services that actually work.