"Guideline 4.0 - Design
We noticed an issue in your app that contributes to a lower quality user experience than Apple users expect:
- Your app was not optimized to support the device screen size or resolution.
To resolve this issue, please revise your app to address all instances of this type of issue.
For information on improving and enhancing your app:
- Review the UI Design Dos and Don’ts for tips on fundamental design best practices.
- Watch the video The Ingredients of Great Apps to understand the basics of great apps.
- Watch the video iPhone and iPad User Interface Design for practical design tips.
- Watch iOS Development Videos to learn about programming and design tips.
- Review the iOS Human Interface Guidelines and ensure that your app's interface and design adhere to these guidelines.
Please see attached screenshot for details.