Chrome (free on Ice Cream Sandwich devices only)
If you use the Chrome desktop browser and own an Android smartphone or tablet powered by Ice Cream Sandwich, owning this app is a no-brainer. The Chrome mobile and desktop apps interact seamlessly with one another, meaning you can access your bookmarks and browsing history on the app. The app also lets you swipe between tabs without ever having to go to the tabs menu. The Chrome app also supports voice search, bookmarking and private browsing. Like Google Drive, Chrome launched on iOS devices on June 28 during Google I/O 2012.