Mobile apps are real applications that are downloaded and installed on smart-phones, tablets and other mobile devices. Mobile apps were basically introduced for general productivity and information retrieval, including weather reports, emails, calendar, contacts, adobe reader, Facebook, BSE/NSE stocks, etc. The type of Mobile Apps varies from a range of mobile games to completely-integrated corporate apps. The increased mobile user’s demand and advanced mobile technology led the development of various mobile app categories including factory automation, GPS and location tracking services, and banking. Users can download device specific mobile apps for a given operating system.
The most popular mobile-specific apps includes Apple’s App Store, the Android market, Blackberry App World, Amazon App Store, Google Play, Nokia Store, Windows Store, Samsung Apps Store and so on. The app makes use of the data from the internet or it can be accessed in an offline manner after downloading. The rapid increase in number and category of apps introduces the challenge that led to the development of a wide range of review recommendation and creation sources such as blogs, magazines and online application services.