Re: They never store and share location data?
Only if they use the privacy-busting Covid-specific "who have you been nearby" API.
The Covid apps use an API Google/Apple created which allows the app to get data on other phones nearby. That data is clearly very sensitive and, in order to get maximum acceptance from users all over the world for this crisis, Google/Apple put very severe restrictions on any app which uses it.
Those restrictions mean that any app which wants access to this special "who has been nearby" API they are not allowed to use many other perfectly normal location APIs.
You can argue about whether those restrictions were necessary but I, for example, would not have downloaded the NHS app without those restrictions being in place. And the restrictions are very clear. There is nothing to stop governments having a second app which does not use that API but records other location data - which is what Scotland has done. I would not install that second app on my phone, however, just like I do not install many other apps which want location information.