Reason for app rejection: Guideline 2.3.3 - Performance > Accurate Metadata

We noticed that your screenshots do not sufficiently show your app in use. Specifically, your 6.5-inch iPhone and 5.5-inch iPhone screenshots only display a splash screen.

To help users understand your app’s functionality and value, your screenshots should highlight your app's core concept. For example, a gaming app should feature screenshots that capture actual gameplay within the app.

Next Steps

Please revise your screenshots to ensure that they accurately reflect the app in use on the supported devices.

Keep in mind the following requirements:

- Marketing or promotional materials that do not reflect the UI of the app are not appropriate for screenshots.

- The majority of the screenshots should highlight your app's main features and functionality.

- Confirm that your app looks and behaves identically in all languages and on all supported devices.

- Make sure that the screenshots show your app in use on the correct device. For example, iPhone screenshots should be taken on iPhone, not on iPad.

What does it mean?

The store screenshots did not showcase the app's features.

How to resolve it? 

Add more screenshots that highlight the app's features.

Once done, respond to Apple's message confirming the change/s applied.

Do I need to generate a new build?

No.