It's an epic knocker simulation! You know, like an old-fashioned door knocker. Use it to fool your roommates into thinking there is somebody at the door. Drives pet's crazy. Can be used to add ambiance to your Halloween experience. Or for whatever purpose you can think of. The sky is the limit with Knocker!

Premium License Key

Knocker is completely free, but it is supported by in-app advertising. Premium upgrade options are available on all major platforms, but if you purchase a license key directly from Ape Apps, you will recieve a license key file which unlocks the upgraded version of Knocker on all platforms! Click Here for more info.