In my latest apps Apple puts me this message:
4. 3 Design: Spam
Guideline 4.3 - Design
We noticed that your app provides the same feature set as many of the other apps you've submitted to the App Store; it simply varies in content or language.
Apps that simply duplicate content or functionality create clutter, diminish the overall experience for the end user, and reduce the ability of developers to market their apps.
Next Steps
To resolve this issue, please combine apps with similar feature sets into a single "container" app (using the in-app purchase API to deliver different content if appropriate).
We encourage you to review your app concept and incorporate different content and features that are in compliance with the App Store Review Guidelines.
I try to find out what exactly is "container" but when I ask them they answer the same answer again. Has someone happened to you? Anyone know what exactly is a "container"? Thank you
A container app is a single app that can be individualized by the user for their particular use. So if your app is an app for Nancy Drew books you don't make an app for each Nancy Drew book. You make one app and you sell each Nancy Drew books one at a time into that app. Or if your app is an app for a Barber Shop you don't make one for each Barber Shop; you make one app that each Barber Shop can individualize for their purpose.