Cool personalized desktop calendar wallpaper for August 2021

iOS 13 is a new generation mobile operating system launched by Apple on June 4, 2019 at the McEnery Convention Center in San Jose, USA. It brings dark mode and new privacy protection features.At 1 a.m. on June 4, 2019, the new iOS 13 was released at the 2019 Apple Worldwide Developers Conference (WWDC19).