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Hiya I was thinking of staring to use and iphone gps app to moniter my runs but was wondering how much data it will use? i have 500 megebytes in my contract and dont want the app to drain it and make me go over.
unless you are using something like mapmyrun, and have live tracking on... I use it but it doesn't seem to use that much, well below my 500mb limit anyway
GPS doesn't use data. It would only use your data allowance if you consult the phone during a run and it has to download a bit of map to display to you.
Mobile phone GPS can, and does, use data.
some mobile phone GPS uses locations of wi-fi to augment location data, infomation that has to be downloaded.
Sorry, just based my comment on the fact I use gps tracking for skiing abroad, when I have data roaming switched off. Makes sense though that the phone would use data if it has it available.