This was the original thread where they mentioned it:
Here was the quote:
"
Additionally, for Apple Watch owners: we are aware that this experience needs upgrades and we are working on a longer term vision for support. In the meantime, the Zwift Game and Companion apps will be removed from the Watch App Store.This means:
New users will not be able to install the Zwift Game or Companion apps
Legacy users will be able to use the watch apps, but will receive no updates to either app"
Later they said they were going to leave the companion app in the store for some iOS users, but I think the issues they refer to above still remain for Apple Watch. It sucks because I find the apple watch isn’t too bad at HR readings while I’m on the bike.
Edit: Their “longer term vision for support” hasn’t materialized yet as far as I can tell.