Badlands is one of my personal favorite games on my iPad, and on mobile devices in general. The game features simple controls, and beautiful art. Gamasutra went behind the scenes, and spoke to its developers about how it has sold on the various platforms.
Ultimately, their average revenue per day was heavily weighted toward premium purchases. Partly because the game has been out on iOS longer, but also because of the nature of the game. Badland has thus far wound up with this split of average revenue per day — iOS app store with 63 percent , and Google Play with 35 percent.