Try TowerMadness HD for iOS for Free instead of $3.99/$8.99
First off, I'm not sure why the original price for this game called TowerMadness HD is different for iPhone and iPad. I would assume that since the game works in the iOs platform which is the same with the iPhone and iPad, that there will be no difference between the code of the program itself. That said, you can now try it on either or both devices for free. The landing page for this game says that it was the winner in the Best App Ever Awards, and Best Strategy Game Finalist in the Pocket Gamer Awards so it must be good and probably worth the money you would regularly pay for it. The graphics is 3D and there are upgrades and expansions you could buy so you won't be bored with the game. It's great to see a game that's still maintained for the gamer's enjoyment.