I have a Instinct 2 Solar,
I couldn't justify the need for the tactical version. But, I have heard that the tactical version had a app or widget for dope charts for your rifle.Not sure if this is true or not...
This would be a great App for somebody to develop. Especially if the tactical has a similar app built in that could be referenced... The Ballistics calculations are pretty simple, Or you could allow users to just put in their own data so that it could be displayed.
It would be excellent to be able to enter the yards or meters for a shot and have it tell you how much elevation adjustment to dial on your scope without having your phone handy. carrying a card is OK and gets you close, but it's really nice to be able to range a shot with a range finder, and then enter the distance into a calculator and it spits out the elevation and windage adjustment based on your preset data for that rifle (Muzzle Velocity, Ballistics coefficient of bullet, Rifle Twist, Altitude)