Mastermind is an Android app developed by APPart (Liersebaan 217 2500 konungshooikt).

Mastermind first became available on 27 Feb 2012. It is estimated that Mastermind has been downloaded between 100000 and 500000 times from the Play Store.

Mastermind 4.24 requires the following permissions:

Allows applications to access information about networks.

Allows applications to open network sockets.

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 access to the vibrator.