Currently,iPhone is the leading smartphone in mobile phone market and it seems this will continue for the following years.After the release of iPhone 4S,Apple consolidates its strangelhold on the smartphone market. One of the reasons for this popularity is the vast number of applications.You can find really useful applications in iTunes store for free.In today’s post we are showcasing another free iPhone app collection.From wallpaper apps to navigation apps,here are free iPhone apps which may…