Fettle Clean

Fettle Clean is not merely a cleaning App; it is also the "exclusive butler" for devices, enabling them to bid farewell to lag and clutter, return to a pure operating state, and embark on a new chapter of smooth digital life. ​

The core functionalities of the application, including junk file scanning and large file detection, require the "All files access" permission to operate effectively.
This permission is used to clean up junk files in the phone.