Just Battery Saver is an Android app developed by LLC "JustMobi" (Munich, Germany). Others apps created by LLC "JustMobi" are: Just Flashlight.

Just Battery Saver first became available on 25 Mar 2016. It is estimated that Just Battery Saver has been downloaded between 500000 and 1000000 times from the Play Store.

Just Battery Saver 2.0 requires the following permissions:

Allows applications to access information about networks.

Allows applications to access information about Wi-Fi networks.

Allows applications to connect to paired bluetooth devices.

Allows applications to discover and pair bluetooth devices.

Allows applications to change Wi-Fi connectivity state.

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

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

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

Allows applications to open network sockets.

Allows an application to call killBackgroundProcesses(String).

Allows an application to modify global audio settings.

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 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 write to external storage.

Allows an application to read or write the system settings.