League of Hero Defenders is an Android app developed by Sunlang Inc. (390/30 Phan Huy Ich street, Ward 12, Go Vap District, Ho Chi Minh City, Viet Nam). Others apps created by Sunlang Inc. are: Fast Racing 2.

League of Hero Defenders first became available on 13 May 2015. It is estimated that League of Hero Defenders has been downloaded between 500000 and 1000000 times from the Play Store.

League of Hero Defenders 1.2.2 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 access to the vibrator.

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

Allows an application to write to external storage.