Master: Clean

: Scanning for temporary cache and residual files to free up space.

: Providing a basic scanner to detect malware and trojans. The Fall: Scandal and Deception clean master

Clean Master was once the most popular Android utility app in the world, with over by 2014. While it promised to "magically" speed up phones with a single tap, its legacy is now defined by a massive fall from grace involving ad fraud , data privacy scandals, and its ultimate banishment from the Google Play Store. The Rise: The "Essential" Utility : Scanning for temporary cache and residual files

: Force-closing background apps to "free up" RAM. While it promised to "magically" speed up phones

In the early days of Android, many smartphones had limited RAM and storage. Clean Master marketed itself as a "digital maid service," offering several key features:

Despite its popularity, technical experts and researchers eventually revealed that many of its features were misleading or harmful:

: Claiming to lower device temperatures by stopping power-hungry apps.