SD Maid – System Cleaning Tool ，非常强大专业的储存卡垃圾文件清理工具，原生简体中文，原生无广告、其所带功能非常全，且清理占用空间软少，操作简便，手机SD卡垃圾清理安卓必备之利器！
SD Maid [v4.7.4] 30.05.2017
Improved: Small code improvements.
Improved: Clutter database
Changed: The secondary storage setup can now be skipped after a few seconds (before you had to try granting permissionat least once).
Fixed: Crash when an app was uninstalled and SD Maid was working with stale data.
Fixed: Crash when sorting apps by name and an app had no name.
Removed: Filter for old WhatsApp backups. The SystemCleaner works best with files with unknown owners, in this case we know who owns the files (WhatsApp) so the AppCleaner is better suited this as it can check if an app is running or work with exclusions via packagename.
Added: Filter for old WhatsApp backups.
Added: Markers “.Trash” and “.trash” to the hidden caches filter.
Improved: WhatsApp sent/received filters. Added matching for “Animated Gifs”.