[oneplane]

Strava isn't cut off from Apple. Instead, Garmin/Fitbit etc. would send their data to Strava, which then would forward it to Apple for them. The part where Strava takes the data from non-Strava apps is the one that got disabled (presumably by strava and not by garmin, but either could have).

[sulam]

Garmin couldn't directly disable this, once Strava has your data they can do with it whatever they want, licensing permitting. Which is a segue into - while I have no specific knowledge of this case, I do think it's somewhat tricky to take data from a third party and then hand it on to another third party. Presumably all of this was mediated by the user, and user's desires should be paramount here, but it's an example of why I believe OAuth is fairly broken and what we should all be giving permission to is capabilities, not access.

[usrusr]

Really surprising to see Strava actively avoiding the central switchboard role that would be such a powerful retention feature. I wouldn't be surprised to see it come back very soon, with some low level UX polisher receiving that talk about power and responsibility.