iOS is probably one of the leading smart-phone operating systems and iPhones occupy a big share of the smartphone market today. At the end of 2010, 73.5 million iPhones were already sold; this portrays the wide usage of this device. If you look at the app market there are almost 830245 apps available, free and paid. Apple and other third party app developers are working hard to create anything that is outstanding and beneficial for the users. Out of all the apps here are the top 10 iPhone apps of 2011.