UPDATE NEEDED! – SAS: Zombie Assault TD HD Review

Ninja Kiwi are one of my favorite game developers but when it came to this game, it has to many problems. The difficulties are to tough, need to tone it down and add a few more maps and difficulties. I play this game on my iPad. Now when I go to purchase upgrades in game because you need to spend SAS money you get in game to unlock the next upgrade. When I purchase this up grade, the game freezes every time. No matter what I do do or how often it won't fix it and I am getting no where in the game. Please fix and then I will fix this review and recommend this game.
Review by Queenbee1 on SAS: Zombie Assault TD HD.