Here's a look at the top five must-have free entertainment apps for the Chrome Web-browser based platform. Google's Chrome Web browser features three types of add-ons -- Web apps, themes and extensions -- available at the Chrome Web Store. Crackle, owned by Sony, supplies a vast array of free movies on demand. They aren't the latest, but they are full-length and uncut, and a lot of them were blockbusters at one time.