Cra cra for flappy ,

A few months ago I used this app on my dad’s phone and decided once I upgraded my phone I’d use this too because at the time I couldn’t use it on my phone because it wasn’t compatible. Now I have the iPhone XR but every time I try to start the demo it just crashes and I can’t do anything! I’ve tried deleting the app and redownloading it and I’ve restarted my phone but to no luck will it work. I gave it 3 stars because when I saw the VR experience it was amazing but obviously the flaw here is that I can no longer see the VR at all. If I could actually get on the app and use it then this app would get a 5 star rating because in all honesty this app is very amazing in the way it’s animated and the experience is very amazing. But until I can actually get into the app I’ll have to give it 3 stars