I saw a lot of fuss over this version with the IAPs over on the TA (TouchArcade) Forums. If you buy the Full or Premium version (currently $9.99), you get everything with NO IAPs. Game-wise, it has a look (and feel) of Risk to it on the surface. Yet, more is going on than simply that beneath the GUI. Although understanding the battle and unit concept is hard to grasp at first, it can become clear eventually. Once you get it, then the battles and unit choices make more strategic sense. I did have trouble understanding the unit specs. Here is what I got confirmed from the Devs: (Solitary) BLUE Shield icon = Defense | Crossed Swords icon (with two stats) = RED is Armored Units Attack & GREEN is Non-Armored Units Attack. This extra tidbit (not clearly included in the game help) should tie the information that IS given together and help you fight effectively in battle.
Gunthure about S&T: Medieval Wars