You wouldn't know it from the screenshots – what with that clean, minimal design and little faces on the number tiles – but behind Threes!' delightfully cheery exterior lays a complex and calculated puzzle core. Its number-blending mechanics are simple on the surface and incredibly easy to pick up, yet careless play is quickly punished and low scores prove inevitable without constant consideration for each and every move made on the board. Success is often elusive in Threes!, yet seeking it has quickly become our favorite new single-minded pursuit.
It's staggering to think that Hundreds began life on anything other than a capacitive interface, but this multitouch magnum opus has unexpected origins as a mouse-based web game. Granted, the ball-expanding puzzler has been revised and refined significantly since that inauspicious debut, resulting in an experience that is perfectly centered around the touch of a finger. Brought to the App Store by a dream team of indie designers, including those behind favorites like Canabalt and Gasketball, Hundreds is one of the smartest and most satisfying touch-based games I've ever played, particularly on an iPad.