Guideline 4.3 - Design
We ask that you consolidate your existing apps, as well as any new apps that you submit, as your app provides the same feature set as other apps you've submitted to the App Store, only varying slightly in content or language. (For those instances where it doesn’t seem appropriate to consolidate all of your apps into one, it would also be acceptable to consolidate your apps by theme, category of app, business, etc.)
To resolve this issue, please combine apps with similar themes and feature sets into a single "container" app. You may want to consider using the in-app purchase API to deliver the different content to your users.
Best regards,
App Store Review
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