There does need to be some sort of device detection. I downloaded a public scenario on an iPad and it wouldn’t play, it came up with a video error. I then realised that it was the 4k version and I needed the HD version. Same goes for some of the on screen elements, it would be good to have separate fields for xyz positions and dimensions for objects. That way they would work on all devices.
PS the app on an iPad attempts to autorotate alot even though its in fixed landscape mode. And the launch text and arrow are lost down the screen in landscape mode, the size of the thumbnail needs to be reduced to stop this from happening. Running on the iPad app also judders a lot even when no video or audio is even being used in a scene.