From what I can see, the reviewer wasn't happy about your screenshots. Specifically the top left corner of the screenshot has the word "TestFlight". Replace that screenshot with a one that doesn't mention TestFlight and re-submit the app. I recommend using the Xcode iOS Device Simulator to take screenshots. There's a button in the toolbar to save a screenshot, or the keyboard hsortcut is Cmd-S.. You should submit screenshots with at least the following screen sizes: 6.7" - iPhone 12 Pro Max 5.5" - iPhone 8 Plus 12.9" - iPad Pro (assuming your app makes sense on iPad) other screen sizes if you're willing to take the time