Greenify is an Android app developed by Oasis Feng (5F, Building 3, Matrix International, Gongshu District, Hangzhou, Zhejiang, China). Others apps created by Oasis Feng are: Island, Nevolution.

Greenify first became available on 09 Jan 2013. It is estimated that Greenify has been downloaded between 10000000 and 50000000 times from the Play Store.

Greenify 4.7.8 requires the following permissions:

Allows applications to access information about networks.

Allows applications to disable the keyguard if it is not secure.

Allows an application to retrieve state dump information from system services.

Allows an application to expand or collapse the status bar.

Allows an application to install a shortcut in Launcher.

Allows applications to open network sockets.

Allows an application to collect component usage statistics

Allows an application to read the low-level system log files.

Allows applications to read the sync settings.

Allows applications to read the sync stats.

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 app to create windows using the type TYPE_SYSTEM_ALERT, shown on top of all other apps. Very few apps should use this permission; these windows are intended for system-level interaction with the user.

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

Allows an application to read or write the secure system settings.

Allows an application to read or write the system settings.

Allows applications to write the sync settings.