They will say that your dating app doesn't offer a unique experience and keep rejecting it even if you do large modifications to make it super unique. It seems they simply do not want anymore dating apps in the App Store. There was a post on Tech Crunch about a similar incident. The article said a dating app was rejected multiple times for the reason that it isn't unique, but later they rejected it for the reason it simply being a dating app. This is Apple.
Topic:
App Store Distribution & Marketing
SubTopic:
App Review
Tags: