Here’s a 10 year challenge I can get behind. Valia Havryliuk demonstrates how iOS apps have changed.
Just last year App Store celebrated its 10th birthday. In 2008 it launched with 552 apps and some of them are still live inside your iPhones. Time has passed and design trends have changed dramatically. #10yearchallenge is a good opportunity to see how fast the evolution is and notice changes in the oldest iOS apps.
iOS 7 was definitely the biggest visual overhaul to iOS. iOS 11 introduced UI changes but it was more along the lines of refinement.