Crackle compare (Android)

With a good selection of free TV shows and movies to stream, this app is a worthwhile download, even if the videos are in standard definition.

With its enormous catalog of on-demand streaming music and its built-in social features for discovering new tunes, Spotify is an absolute must-have for audiophiles and casual listeners alike. But free users, beware of intermittent eardrum-piercing ads.

Amazon Instant Video is only instant if you're a Prime subscriber or once you've already purchased content from Amazon's Web site, but the lower cost for some videos might make it worth your while.

Air Patriots is a unique tower defense-style game that strikes just the right balance between challenging and fun.