Facebook: Undoubtedly this is your social savior and now with a mobile friendly version it has become all the more fun to be connected to your Facebook friend on the go. Instagram: Most interesting photo taking app around. Must have for the photo sharing addicts. Twitter: If you sleep , breath and eat Twitter, then you can’t do without this app Pandora: A delight for those who crave for free music. Create radio stations as per your favorite songs. Kindle : Lets’s you purchase books and even read them without much hassle. Dropbox: If you are having space issues in your phone, then drop box is here for your rescue providing you plenty of space for your music, photos and games.