I think it would be nice if bunq wouldn't make iOS-only features.
If you want to add features to one segment and ignore the other, then why prioritize iOS over Android? There are more than 7 times more users on Android than iOS in general, so the choice seems odd to me.
In any case, I think the apps should offer the same functionality on different platforms, unless absolutely impossible because of restrictions in the platform, but I doubt that is the case here.