Trapster is currently the most popular driving related mobile app in the world (both in cumulative and ongoing daily downloads, on average 15,000 new users per day and 5,000 new traps reported each day), with over three million users and over 1.2 million traps reported worldwide, according to the company behind the service.

Trapster has announced version 4.0 of its iPhone app, noting significant additions, such as an improved way to increase user confidence, a brand new Caravan feature, new trap types, and an improved user interface. Since the service is totally free, the Trapster iPhone app is also a free download available on the iTunes App Store.

As the first location based app that alerts users in real time when they approach speed traps, it directs user provided data to other service users. Thought a newly added Caravan feature, Trapster users can see friends and fellow service users in real time on the map and send audio, images, and other messages, either to one friend or the whole group, or Caravan. Turn-by-turn directions, real-time traffic details, accident reports, gas stations, banks, rest stops, and even a local search feature make up the Trapster service. Here is a video presentation of Trapster to better understand what it is all about.

“Knowing traps are update and accurate is incredibly important for Trapster users. Therefore, we have built Patrol, a feature that places a blue line on roads that other Trapster users have recently driven down,” the guys at Trapster reveal. “It really raises the confidence factor on the road. We have also added ‘road hazard’ warning, including accidents, road closures, road kill (a serious security problem in some places), children at play, brush fire, dangerous intersections, icy and flooded roads and construction zones, for example,” the company said.