They can be misleading, though.
My wife tried one of those apps with her own phone. It showed her going down the road about 3 miles from home.
It’s because there’s signals pinging different cell towers at the same time, and depending on signa strength, atmospheric conditions, buildings, hills, etc. they can give a false display...........................
I’m always shown driving down the middle of the river or going 3,239,750 mph.