It's a pity you can't test it on an Apple device, it's always good to have some feedback. To be honest I started developing the game with Javascript (hoping to release it with phonegap) but, as you said, I found that the performance wasn't that great. I then switched to Swift (for the first time) and I was really happy with the native performance.

I kept my javascript prototype though and put it on this landing page. In my mind, it was just to offer a preview of the real app.

Anyway thanks for the comment on the mouse release. I'll definitly fix that!

Hope you'll have the chance to test it on a device at some point!