Rich Mobile Notifications

I have an app that implements notifications wonderfully with raix:push on iOS and android. Now I want to richify these notifications with features offered by Apple’s UserNotifications Framework, namely media attachments, title/description, perhaps a custom layout.
Is there any package that allows that out of the box? Would it make sense to integrate Pusher? Has anyone done that?
Many thanks for your guidance. Incidentally, there is a similar q on SO with a bounty on it. Just saying. :wink: