I don't see why you can't have Location Services set to "While Using" because the app doesn't track automatically for you - you have to press 'Start Trip' every time.
Would definitely save battery, plus I'm paranoid that you're constantly collecting my location data in the background. I think you are, which is why the app can be free.
@bryantpeng Hi Bryan, the iPhone app doesn't connect to the Internet (yet). So for now no data is collected. We aim to provide an online profile (like on Strava / Runkeeper etc) but of course no personal data is sold or given away to third parties. That's a no brainer. About the location tracking on the background: we do record your trips automatically. So that's why we need it.
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