A free program for Android, by mobirixsub.

Don’t have a slingshot at home? No worries! Thanks to Slingshot Championship, you can wield your own slingshot to hit a variety of objects, from fruits to glass bottles. The game features different maps and levels, such as a rooftop and a factory. 

The app is easy to play, but difficult to master since you should take into consideration the wind force. If you don’t, your shots may miss. Fortunately, there are power-ups to make the game easier. Slingshot Championship supports offline two-player matches, so you can play with your friends and see who among you is the better marksman. It also supports Android phones and tablets for better accessibility.