Mac (9696 programs)

Pros: Alert you by mail. Automatically place orders. Support for six Amazon sites.

Cons: Alert sound is terrible. Can only set watch by seconds or minutes. Random items sometimes appear.

Pros: 32 different levels. Extensive tutorial. Unlock new locations. 5 settings.

Cons: Progress is lost when upgrading to premium. Long loading times. Hogs CPU. Interface is too basic.