I never played a miniature game where it was a hassle to just use the stat cards or a pencil. Seems a bit silly to involve a tablet and just seems to be done as a gimmick.
Another game tried similar using software to play with it to track stats and do the calculations for you. It failed horribly as most gamers found the need for software to go along with your miniature game was silly. And if your rules are so complex that you need software to help calculate anything, you have failed horribly at rule design.
I played Warhammer 40k and I had to look up shit all the time. This might not be a great solution but I will take a look at it. It's probably going to be pretty expensive though.