Solid Explorer - Solid Explorer is a powerful Android file manager featuring access to most popular cloud storages, root access and easy extensibility.
KeepSafe - Keep your entire photo library safely stored in an encrypted private cloud.
MiXplorer - MiXplorer is a mobile app that was designed to make it easy to organize and manage the files on your Android device.
AppLock (FOSS) - A privacy App lock FOSS application.
Cx File Explorer - Cx File Explorer is a free powerful file manager application with a clean and intuitive interface.
Hexlock - Security app locker keeps apps private with smart profiles for any situation