My Apple iPhone is on the money as a pedometer. I checked it again two other stand alone pedometers the wife and I had. Neither the iPhone nor the other pedometers varied more than a step or two.
I will google it. I'm pretty behind on this technology. thanks guys. RR iirc it was strava that someone said was not accurate so if I see it & thats the correct name/spelling I will avoid it. my ph is an android/nokia I believe