Fast Cleaner is an Android app that helps to optimize your phone's performance by freeing up space and boosting RAM. It scans your device for junk files, including app caches, residual files, apk files, temp files, log files, and AD junk files, and allows you to delete them easily. It also scans for large files that you can choose to delete if unnecessary. The app offers a beautiful widget that you can add to your phone screen for convenient cleaning. With just one tap, Fast Cleaner can scan your Android phone and provide a quick cleaning solution. Don't hesitate to download and enjoy the benefits of this useful app now!