Yahoo!ファイルマネージャー is an Android app developed by Yahoo Japan Corp. (〒102-8282 東京都千代田区紀尾井町1-3　東京ガーデンテラス紀尾井町　紀尾井タワー).

Yahoo!ファイルマネージャー first became available on 16 May 2013. It is estimated that Yahoo!ファイルマネージャー has been downloaded between 5000000 and 10000000 times from the Play Store.

Yahoo!ファイルマネージャー 1.19.2 requires the following permissions:

Allows applications to access information about networks.

Allows applications to access information about Wi-Fi networks.

Allows an application to clear the caches of all installed applications on the device.

Allows an application to delete cache files.

Allows an application to find out the space used by any package.

Allows an application to install a shortcut in Launcher.

Allows applications to open network sockets.

Allows an application to manage access to documents, usually as part of a document picker.

Allows an application to read from external storage.

Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting. If you don't request this permission, you will not receive the broadcast at that time. Though holding this permission does not have any security implications, it can have a negative impact on the user experience by increasing the amount of time it takes the system to start and allowing applications to have themselves running without the user being aware of them. As such, you must explicitly declare your use of this facility to make that visible to the user.

Allows an application to request installing packages. Apps targeting APIs greater than 22 must hold this permission in order to use ACTION_INSTALL_PACKAGE.

Allows applications to set the wallpaper.

Allows access to the vibrator.

Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.

Allows an application to write to external storage.

Allows an application to read or write the system settings.