JuiceDefender is an Android app developed by Latedroid (Calle della Regina San Polo 30135 Venezia). Others apps created by Latedroid are: JuiceDefender beta.

JuiceDefender first became available on 23 Dec 2011. It is estimated that JuiceDefender has been downloaded between 10000000 and 50000000 times from the Play Store.

JuiceDefender 3.9.4 requires the following permissions:

Allows an app to access approximate location. Alternatively, you might want ACCESS_FINE_LOCATION.

Allows an app to access precise location. Alternatively, you might want ACCESS_COARSE_LOCATION.

Allows applications to access information about networks.

Allows applications to access information about Wi-Fi networks.

Allows an application to collect battery statistics

Allows applications to connect to paired bluetooth devices.

Allows applications to discover and pair bluetooth devices.

Allows applications to change network connectivity state.

Allows applications to change Wi-Fi connectivity state.

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

Allows access to the list of accounts in the Accounts Service.

Allows applications to open network sockets.

Allows modification of the telephony state - power on, mmi, etc. Does not include placing calls.

Allows an application to read from external storage.

Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.

Allows applications to read the sync settings.

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 monitor incoming MMS messages.

Allows an application to receive SMS messages.

Allows an application to receive WAP push messages.

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 applications to write the apn settings.

Allows an application to write to external storage.

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.