Not if you deny the sites access to your location data, the permission for which is denied-by-default and is never, ever actually necessary for anything.
Because I honestly never know whether or not an app has permission or not to access my location. App permissions are granted when the app is installed, not when it's run. Furthermore, apps update silently, and are they giving themselves new permissions or not with each update? If I have given an app permissions to access my location, how do I see that, and how do I revoke it? And if I don't manually close the app, is it still running in the background accessing my location at all times? For how long? For websites, these questions are easy to answer. For apps, I find it to be an utter mystery. App permissions are mess; better than free-for-all OSes like Windows, but worse than the web.
> App permissions are granted when the app is installed, not when it's run
This is not the case in iOS, and I don't believe it's the case in android either, IIRC. You can also always audit app permissions via the settings app.
> how do I revoke it
Settings app. No idea how I'd do it in the browser, FWIW. Nor how I'd audit what permissions an app has.
> it still running in the background accessing my location at all times
Apple has a "allow location access only while running [in the foreground]" option as well. Not sure about Android.
> Furthermore, apps update silently, and are they giving themselves new permissions or not with each update?
They are absolutely not doing this. Security auditors would be screaming from the rafters if Apple or Google allowed app updates to change their permissions settings.
