Camera Awesome is free, but it is only available for Apple's iOS devices. (SmugMug CEO and Chief Geek Don MacAskill, says an Android app is in the works.) Though the app includes 36 free effects, including presets, filters, textures and frames, 261 effects must be bought as an in-app purchase for 99 cents per set of nine.

WSJ: The Digital Solution: A Photo App That Makes 'Awesome' a Verb