Android apps you need now San Francisco Chronicle Copyright 2012 San Francisco Chronicle. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Published 8:45 p.m., Sunday, December 9, 2012 Some popular movies and relatively new TV shows are available for streaming. Crackle doesn't have HD content, and there's no search function. With a good selection of free TV shows and movies to stream, this app is a worthwhile download, even if the videos are standard-definition. Air Patriots adds a unique twist to the popular tower defense genre, and the variety of its unlockable units makes the game addictive. Air Patriots is a unique tower defense-style game that strikes just the right balance between challenging and fun. TuneIn Radio Pro for Android has an impressive variety of programming, including more than 70,000 stations. Whether you're a regular Google+ user or you're just interested in a few mobile features such as Instant Upload and Hangouts, Google+ for Android is a must-have.