Booster Cleaner is a free Android cleaner app that can scan and clean your Android phone to make it run faster. It can also delete junk files and folders and clean the cache to keep your device free of unnecessary files. The application has a simple and intuitive interface that is easy to use. Just open the app and select the "Clean" option. It will then begin scanning your device and will show you the progress of the scan. After the scan is finished, the results will be presented to you in a simple and intuitive manner. You can then choose to clean the results or view them. You can also delete individual files or folders.