Appthining is a new feature released by Apple from iOS 9. It can optimize the Apple Store and operating system. It can compress and reduce the size of the application installation package as much as possible according to the user's specific equipment model, on the premise of ensuring the integrity of the application function, that is, reduce the application's occupation of the user's equipment memory as much as possible, thus reducing the user's burden of downloading applications.

There is no slimming application on OPPO mobile phone.