A free app for Android, by Tiger 30 Studio.

Gun Simulator: Weapon Sound is a free and fun app for Android phones and tablets that lets you use the sound of guns to simulate various scenarios. With this app, you can create a variety of different scenarios, such as a battle with your friends, a hunt, or even a zombie attack. 

Aside from having fun with the sounds of guns, you can also explore realistic scenarios and even choose what kind of weather you want to create an environment that is as close to real life as possible. 

What makes this app unique is that it lets you explore a wide range of different weapons, from pistols, machine guns, rifles, revolvers, and shotguns. There are even different types of weapons, such as pistols, machine guns, rifles, revolvers, and shotguns.