Speedometer is just a simpliest app helps to calculate the speed .speed calculating is an interesting thing .
speedometer app calculates the maximum speed ,average speed, duration of the trip.
Speedometer app track the route of the trip and display the moving position.

Stopwatch your iPhone/iPod touch or iPad into a precise stopwatch and five running simultaneously timers. So, whenever you need a professional stopwatch for sport activities like: sprints, jogging, or daily life uses of timer such as: egg timer, tea timer, cooking, alarm clock, etc. , this tool is a must have in your pocket.