Anybody else using it? It has worked well for me out to 700 yds. As soon as my new build is finished, I'll try it out farther. Ohh yea, it's an android app.
Strelok only allows 3 rifle, load combinations. To me that's a great limitation. It also doesn't allow for G7 BCs if you like those. Doesn't account for Coriolis, if you're that exacting of a marksman. Shooter is a much more advanced program, and also has a nice bullet library. It allows you to select the rifle, than each load you have for that rifle...it's just much nicer.
I just put Strelok on my droid a couple weeks ago and have not had a chance to use it in the field, but FWIW, mine shows 7 different rifle/load combos available and has every reticle I own already in it.