https://techcrunch.com/2018/06/04/apple-announces-a-very-international-group-of-apple-design-award-winners/

On Monday afternoon, June 4, Apple handed out its annual Apple Design Awards onstage at its Worldwide Developer Conference in San Jose. The awards, now in their 21st year, are meant to highlight those apps that set a benchmark for high-quality design, taking into consideration things like the user interface and user experience, originality and other factors that represent those types of applications that Apple would like to see more of in its App Store.

Other app developers often look to the list of design award winners to get a sense of the type of apps and designs that Apple values.