Yes, this is related to all Snipers out there, it is the most accurate ballistic apps with huge ammunition data library that you can use to create your personal ballistic data which includes muzzle velocity, muzzle energy, ballistic coefficient, distance, wind speed & direction, weapon sight height, and weather condition, etc.
Also includes different scopes brand either FIrst Focal Plane, Second Focal Plane, and showing many target selection with POI indicator of elevation and windage for adjustment correction needed for that range distance.
The rest of ballistic apps I purchased and used that you may compare next leading are Mil-Dot Ballistic, iSnipe, Ballistic AE, StrelokPro, and the worst more expensive Applied Ballistic.
By: USMC Sergeant, Sniper, Rifle Expert- 4th Award, Pistol Expert- 3rd Award