This one stings, but it's fixable. Apple's Guideline 4.0 covers apps with broken layouts, illegible text, or an overall experience that doesn't feel like it belongs on iOS. Here's how to address it honestly.
What Apple said
“We noticed that your app's design is of limited utility and does not meet App Store quality standards. The app includes layout issues, inconsistent UI elements, and text that is difficult to read. We encourage you to review the iOS Human Interface Guidelines and make the necessary improvements before resubmitting.”
Apple's reviewers compare your app against iOS platform conventions and basic usability standards. If buttons are too small to tap, text is too small to read, layouts break on standard device sizes, or the app just looks cobbled together, it can get rejected under 4.0. This is subjective, but there are clear patterns to fix.
While you're at it — Apple also requires these pages for every app.
Fix this rejection, then make sure you're covered on the compliance side too. Apple requires every app to link to a hosted Privacy Policy, Terms of Service, Support page, and Data Deletion page. No link means another rejection — just for a different reason.