This app is using temperature, altitude, humidity, atmospheric pressure, distance to target, target speed and direction, coriolis effect, slope angle, cant and your rifle configuration for calculate optimal vertical, horizontal and lead corrections.
It helps shooters calculate hold overs, and scope settings necessary for long range shots.
This is a smart ballistic calculator for long range shooters.
Subscription available for $1.49/month, $9.99/year and provides access to all features.
You can turn off auto-renewal by going to your Account Settings after purchase.