Sudoku Classic is an Android app developed by Cross Field Inc. (東京都中野区中央1-42-5). Others apps created by Cross Field Inc. are: Beer Pong, Bird Life, Cat Life, Cat Room, Classic chess, Dog Life, Forest Life, Goldfish Collection, Hamster Restaurant, Hitting Ball, Hamster Life, Shogi Free.

Sudoku Classic first became available on 25 Feb 2012. It is estimated that Sudoku Classic has been downloaded between 100000 and 500000 times from the Play Store.

Sudoku Classic 1.1.8 requires the following permissions:

Allows applications to access information about networks.

Allows applications to access information about Wi-Fi networks.

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

Allows applications to open network sockets.

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 application to write to external storage.