MP3Gain is an Android app developed by Keerby (60 rue berruer 33000 Bordeaux). Others apps created by Keerby are: Keerby Adaware, Fast Video MP3 Converter, Format Factory, MP3 Converter, Video To GIF.

MP3Gain first became available on 25 Feb 2016. It is estimated that MP3Gain has been downloaded between 100000 and 500000 times from the Play Store.

MP3Gain 1.3 requires the following permissions:

Allows applications to access information about networks.

Allows applications to open network sockets.

Allows an application to read from external storage.

Allows access to the vibrator.

Allows an application to write to external storage.