The description of SightTune
This application will allow you to sight in your bow in half the time. You will need to sight in your 20 and 30 yard pins. Once the pins are sighted in, simply point your device's camera at the sight and line up your sight's 20 and 30 yard pins with the ones that are displayed on the camera using the slider bar located at the top. This application will then automatically move the 40, 50 and 60 yard pins to where they need to be set based on the 20 and 30 yard pin locations. This will get you as close as possible!