I've checked all my settings, permissions etc. I've updated, cleared cache - everything I can think of, and it's still hit or miss as to whether it will work on any given day. Today I've walked at least 10km with my phone in my back pocket - like I always do. App says I've walked 0.03km! Don't use if you want anything accurate. I would uninstall if I didn't have a game that uses steps tracking. I'd give 0 stars if I could