A while Back I posted I liked the Kestrel
Horus Combo and The more I use it the more I like it. The fine tuned adjustment of automatically estimating you muzzle velocity based on the current temp has been great. Only down side is the screen is small, its ok but since I turned 47 I need the reading glasses more often. I can read it with out but 5 years from now maybe not.
I have many other units I compared it to and the simple idea of the Rangefinder and this pkg. is a great combo.
I have a Palm Pilot T3 with NightForce ExBal I just sold in favor of the Horus Atrag SW and the HP 111 and the bigger screen is nice for the Range and practice when you have space and time the size of the text is not much bigger on the 111. but for the hunt I like the Kestrel Horus Combo unit the best.
I also have an iPhone with Knights Armament Bullet Flight 2 and the New Shooter Version Between those two I like shooter by a small margin because of the Graf feature.
for use on your computer the Night Force is best but no one makes SW for the Apple Computers so for many years I used Oehler's Ballistics Explorer and for its time 15 years ago it was great.
Now I own only Mac and am sold on all the portables.