does it cost to run strava on an iphone

just wondered after using the free strava iphone app everyday for a few weeks and a 3.5 hours in the saddle on saturday where it drained my battery to 3%, if my phone company charge me for running the GPS and the upload/download?
if so wondering if its better/cheaper to buy a garmin edge?
if so wondering if its better/cheaper to buy a garmin edge?
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No one can charge for GPS usage. Mobile data on the other hand...
And something's up with your phone. I get 6 hour rides in on mine without it running out.
Do you have all of your apps running at once ?
As others have said, it uses the cellular data network and GPS signals to give real time locations. The phone is basically recieving data to enble these location services. Your phone company will charge you for data, or you will have a monthly allowance or unlimited data depending on your contract.
http://gizmodo.com/5015930/giz-explains-what-you-didnt-know-about-the-iphone-3gs-gps
Oh, and for battery life, ensure only strava is running, turn off Push function for apps like Mail, turn off Bluetooth & wifi (unless your in a wifi area), and you should see an improvement.
cheers...