The Associated Press, working with Princeton University researchers, report that Google services on both Android and iOS devices store the user's location irrespective of location data privacy settings. The company was caught after prompting a graduate student to rate a retail store they had recently visited.
Google's support page on the subject states: "You can turn off Location History at any time. With Location History off, the places you go are no longer stored."
That isn't true. Even with Location History paused, some Google apps automatically store time-stamped location data without asking. …The privacy issue affects some two billion users of devices that run Google's Android operating software and hundreds of millions of worldwide iPhone users who rely on Google for maps or search.
There is some elaborate ratmaze of settings you can dig into to actually turn the tracking off, one of which is apparently this "Web and App Activity" panel. Google says it is "being perfectly clear." The AP's interactive map of its researcher being tracked over a three day period shows what is perfectly clear: where you are.