Great tool for ballistic data, temperature, air density, etc.
I give kepler pro app a better review, they link up fine, but so did a cheap kestrel on a loose tripod. You have to download an app and put in logistics. But, had to manually put in muzzle velocity and no data saved to make it easy, no rectlicle, and not very interactive on its own. Just read the box, enter every info you can and input yourself, and Weapon as well, measure scope height, Just painstaking to put in a rifle and some things you can't enter. Just a nice weather reader. In the box still...so no pictures needed. Not happy.