Our app has been rejected three times now after adding additional functionality each time. We keep receiving the same generic rejection.---------------Guideline 4.2 - Design - Minimum FunctionalityWe found that the usefulness of your app is limited by the minimal amount of content or features it includes.Next StepsWe encourage you to review your app concept and incorporate different content and features that are in compliance with the App Store Review Guidelines.We understand that there are no hard and fast rules to define useful or entertaining, but Apple and Apple customers expect apps to provide a really great user experience. Apps should provide valuable utility or entertainment, draw people in by offering compelling capabilities or content, or enable people to do something they couldn't do before or in a way they couldn't do it before.---------------It's a weather app (called Whether). It compares yesterdays weather with today's weather or tomorrow's weather with today's weather. We provide funny custom illustrations or quotes for each case. Users can submit their own quotes to see them in the app. Feel free to take a look: https://testflight.apple.com/join/l2mIXfWxThere are several other apps that inspired us to create Whether. They have fewer features than Whether. Examples areMr. Chilly (by Alexander Chia), Daylight (by Bakken & Bæck), and Moon (by Charlie Deets).We're frustrated by the lack of transparency in the process. We've considered adding additional features like notifications or a lock screen widget but it's unclear that would make a difference. Any advice or feedback the community could provide would be greatly appreciated!