We are writing to let you know that we have completed the review of your app. Upon further review, we found that your app does not comply with the following guidelines:
Guideline 2.3.1 - Performance
We discovered that your app contains hidden features. Specifically, this app contains functionality to load a webview of external content within the app. It would be appropriate to ‘bake-in’ content of these web pages into the submitted binary or remove them from the app’s functionality before resubmitting for review.
The next submission of this app may require a longer review time, and this app will not be eligible for an expedited review until this issue is resolved.
Submitting apps designed to mislead or harm customers or evade the review process may result in the termination of your Apple Developer Program account. Review the Terms & Conditions of the Apple Developer Program to learn more about our policies regarding termination.