Mine seems to. Shrug There's always a counter-anecdote somewhere, I guess. Back when the iPhone 4 was new, my friend had some kind of HTC Android, and he would

Mine seems to. Shrug There's always a counter-anecdote somewhere, I guess. Back when the iPhone 4 was new, my friend had some kind of HTC Android, and he would beam about how he could run a tool that would help him micromanage battery power so that he could shut off this app versus that app (which he had to do quite often). I simply never had to. As Anandtech can back up, the iPhone 4 had amazing battery life compared to its contemporaries. Though more anecdotal evidence seems to show that newer iOS devices consume more power. Anyway, for reference, Settings > Privacy > Location Services. You can see what is actively using GPS. As part of its low-power design efforts, other than music, there really isn't much else that the OS will allow to run in the background. All other closed apps are frozen in a saved state. Also, Settings > Privacy > Location Services > System Services, at the bottom, Status Bar Icon.