Tengai is an Android app developed by S&C Ent.Inc (5F, 441 Teheran-ro, Gangnam-gu, Seoul, Republic of Korea (06158)).

Tengai first became available on 09 May 2014. It is estimated that Tengai has been downloaded between 1000000 and 5000000 times from the Play Store.

Tengai 1.334 requires the following permissions:

Allows applications to access information about networks.

Allows applications to access information about Wi-Fi networks.

Allows applications to change network connectivity state.

Allows applications to change Wi-Fi connectivity state.

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

Allows an application to install a shortcut in Launcher.

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 using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.

Allows an application to write to external storage.

Allows an application to write to external storage.