The really interesting apps are those that combine two or more
sensors. How about using the accelerometer along with GPS to measure
how many calories someone burns jogging or walking? The GPS can give
you distance and the acceleration values can be filtered to detect
gait or number of steps. If they enter their weight, you know number
of steps, distance traveled, and weight moved, which should correlate
very closely to energy (calories) consumed.

On Jul 31, 7:36 am, Robert Lin <> wrote:
> I joined in a match on mobile app developing and i wanna design an app
> based on GPS. But what exactly kind of app is the best? do u have
> ideas friends?

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