Smart Diagram is an Android app developed by Sillycube (Unit C2, 5/F, Mai Wah Industrial Building, No 1 - 7 Wah Sing Street, Kwai Chung, NT). Others apps created by Sillycube are: Paper War for 2 player.

Smart Diagram first became available on 11 Apr 2011. It is estimated that Smart Diagram has been downloaded between 100000 and 500000 times from the Play Store.

Smart Diagram 1.04 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 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.

Allows an application to write to external storage.