In today’s era, due to rapid development in the mobile technology and mobile devices, the applications i.e. mobile apps are being very interesting and popular concept. As there is large number of mobile Apps, ranking fraud is the challenging factor in front of the mobile App market. Ranking fraud is the term used for referring to fraudulent or suspicious activities having the intention of boosting up the Apps in the popularity list. In fact, App developers are using tricky means frequently for increasing their Apps sales. just we download all apps like Facebook, WhatsApp, gaming apps and use that app for our entertainment purpose. some user’s post reviews about app for other references. whether the review is good (or) bad. But some other users post fake reviews about particular app. We can’t block a fake reviews. user can’t view apps based on rank base. Unwanted app cannot be remove easily. The main aim is to develop such system that find ranking, rating based on user review’s and also block fake reviews about a app.