Android app does actually work - sort of. It loads and can now start and run Spotify (after Spotify updated something in their app), but Tune-In is still not working.
Tune-In was, however, working from iphone (after they broke Spotify there too), but a recent update has broken the whole of mini-connected from my old iphone 5 (which I only bought to run from the car). The app now starts to load, then crashes. I've tried uninstalling/reinstalluing, even restoring the whole phone from backup (unfortuanately only the os, the apps needed to be downloaded again).
I give up. Black marks to BMW for their complete lack of support or interest in keeping mini-connected working. It's old-fashioned radio only for me.