Has anyone been able to connect their Vivoactive 5 to the RaceQ sailing app with iPhone or without the iPhone?

I have used the sailing app RaceQ on my old Vivoactive 3 for years. Regrettably it has died. I got a new Vivoactive 5. When I tried to open Race Q I was told to log in via the RaceQ app on my mobile. I have just updated my iPhone to an iPhone 16 Pro. I tried to update the RaceQ app on the iPhone and find the app is no longer available for the phone. Has anyone else encountered the problem? Have they found a way to get around the issue? I am not going to change phones!