File Manager +
If you have tons of files on your smartphone and struggle to keep them organized, File Manager + is a great way to rein it in, cleaning your smartphone and putting everything in order. With this app, you can locate and organize everything stored on your Android by moving or deleting files accordingly. The app is very intuitive, with an interface that's easy to understand. The main screen has folders for videos, audio files, documents, apps, new files, the cloud, and general storage, from which you can see all the files stored on your smartphone. In each folder, you'll find all the files that fit into that category, making it easier to see all your videos at once, for example, and delete unnecessary files without too much hassle. You can also clean your smartphone's cache and uninstall apps you no longer use to free up memory. You can even track and delete files to speed up your smartphone. This app also makes it easy to move files from one folder to another and otherwise manage your files however you want. Finally, one of the best things about File Manager + is that you can use it to access your files remotely or share them to the cloud so you can access them even when you don't have your smartphone on hand.