The most common problem on the iOS platform is 4.3a. The 4.3a clause for Apple Developer is as follows: 4.3 Duplicate Apps
(a) Please do not create multiple bundle IDs for the same app. If your app intends to provide different versions for specific locations, sports teams, universities, etc., please consider submitting only one app and using in-app purchases to provide different features.
(b) At the same time, please avoid continuing to develop in categories where there are already a large number of similar apps; there are already too many apps on the App Store that simulate fart and burp sounds, as well as flashlight, fortune-telling, dating, rock-paper-scissors, and Kama Sutra apps. Unless such apps provide a unique, high-quality experience, we will reject them. Uploading a large number of similar versions of apps may result in your removal from the Apple Developer Program.
Currently, both newly released apps and updated existing apps may violate the 4.3a rule.
