This app turns your SmartPhone into a red dot sight. Red dot scopes has been proven to improve target acquisition time. In fact, with this app mounted on your airsoft, paintball, or real firearm, your acquisition time is even faster. With a basic reflective sight, you have to get the red dot within the reflective mirror. With this app, as long as you can see the app screen (withing the viewing angle), you'll be able to see the red dot reticle.