Offers scheduled cleaning and "Slim Down" features for free. 5. Troubleshooting Activation Issues If your key isn't working:

: Scans and removes system cache, registry entries, and social software residue.

Uninstall Clean Master if you only use it for junk cleaning. Use your phone’s built-in tools (Android 11+ has a great storage manager). If you need advanced features, pay once for SD Maid or enjoy the free Files by Google app.

Blocks bloatware and malicious files before they can settle into your storage. Clean Master License Keys (Updated April 2026)