Not for now, but I will see if I can do that in the future! 🙂
The app is very light though (only 15Mo!).
But it is true it would be nice to be able to play in browser...
I was learning android app development, following a course explaining how to make a simple quiz application, and I decided to make my quiz about Harry Potter... and then I got a bit carried over, creating loads of difficult questions and a house points system and publishing it and all! 😃 That's why it's only android. I'll have to rewrite all the code to make it available for ios or in browser, so not for now but I might do this at some point! 🙂