3G/4G Speed Optimizer is an Android app developed by 김효준.

3G/4G Speed Optimizer first became available on 11 Jan 2012. It is estimated that 3G/4G Speed Optimizer has been downloaded between 500000 and 1000000 times from the Play Store.

3G/4G Speed Optimizer 1.3.0 requires the following permissions:

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

Allows applications to access information about networks.

Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call.

Allows applications to open network sockets.

Allows an application to read from external storage.

Allows an application to write to external storage.