alt Hacker NewsThe guideline:
(b) Don’t submit apps that are indistinguishable from what's already widely available. Opportunistically creating variants of existing app categories or popular apps degrades App Store discovery, reduces overall app quality, and harms both users and developers. Certain kinds of apps, such as dating, flashlight, sound effects, wallpaper, simple timers, and fortune telling, are well established on the App Store and we will not accept new submissions unless they offer a meaningfully different or improved experience. We may remove these apps from the App Store going forward if they are not updated, improved, or do not attract customers. Other kinds of apps, such as drinking games, Kama Sutra, fart, and burp apps, are mediocre, low-quality, or low-effort and do not add value to the App Store. Repeated submissions of this kind may lead to removal from the Apple Developer Program.
This is such a dumb policy, and it's absolutely not even being followed.
I submitted a timer app this year and it got approved. It's literally just a slightly more feature-rich timer.
I made this as a "my first app" type of experience. Never at any point was the quality of my app questioned, and I'm the first person who will tell you that it's not very good.