On most Android and iOS devices we do not see any battery usage issues, however, on a handful of devices we do and we will get to the bottom of this very soon! When we first started on iOS, battery drain was an issue. With some tech wizardry over the past year, the iOS app is no longer in the top-5 battery drainers on most iPhones.
If you are experiencing battery consumption issues, please try turning on battery saver (look for the small "battery" icon on the left of your main progress bar). This will greatly reduce battery consumption, however, it can reduce steps counting or steps being lost at the beginning of each walk. To avoid this from happening, simply open the app when you leave your home or office.
Please keep half an eye on our updates as we release them regularly as we work through some of these issues.