We wrap up our tips and tools for storage management with SD Maid, a storage maintenance app designed to free up space on your SD Card or internal storage by searching for temporary files, logs, debug files, and widowed files and folders left behind by uninstalled apps. In addition, it also doubles as a file and app manager. The free version is a perfectly serviceable app, but more options can be unlocked by purchasing an unlock key. Again, the tradeoff for much of the power of this app is that it needs root permissions to function at its best.
Verdict: Great for sweeping up loads of widowed files left behind by uninstalls as well as other temp file and cache detritus. A host of extra features, such as app and file managers, are great added value, though the root requirement for full functionality is a major hurdle for many users.