App Review rejected due to Guideline 4.3(a) - Design - Spam

Hello,

My app was rejected because of App Review Guideline 4.3(a). The guideline says: "Don’t create multiple Bundle IDs of the same app. If your app has different versions for specific locations, sports teams, universities, etc., consider submitting a single app and provide the variations using in-app purchase."

The original answer is: "We noticed your app shares a similar binary, metadata, and/or concept as apps submitted to the App Store by other developers, with only minor differences. Submitting similar or repackaged apps is a form of spam that creates clutter and makes it difficult for users to discover new apps."

I am very confused. I just bought a Mac and iPhone and ported my Android app "Travel Trivia" from Weltraumerei to iOS. So I don't have other apps in the Apple App Store. I created my app all by myself and did not repacked another apps or similar procedure. I have only one bundle id.

There is one app with a similar concept in the store which unfortunately has the name "Travel Trivia". So I renamed my app for iOS to "Travel Trivia World Quiz". The difference is that this app asks questions about the world and my app has a map and asks questions about countries. On Android the only similar app to my app is "Backpacker". From my understanding my app is relatively unique in concept.

Anyway I don't understand why my app is rejected. The uploaded version does not contain In-App-Purchase, Achievement, Leaderboard and Sharing like the Android version does because it is still work in progress. I admit the uploaded screenshots are not that polished and final but ok, you can check it in the Android Store.

I don't know how "shares similar binaries, metadata" with other apps can be fixed if this is the case. It is because I used Unity like most developers and this results in similar filename?

Anyone can help?

Kind regards,

Chris