Blade is an Android app developed by UNIT5 (서울시 강남구 삼성로104길 22(삼성동)). Others apps created by UNIT5 are: Monster Super League, MonsterSweeperz, Seven Guardians.

Blade first became available on 20 Jan 2016. It is estimated that Blade has been downloaded between 500000 and 1000000 times from the Play Store.

Blade 1.7.5 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.