Hello there and thanks for playing!
Our web build does run on mobile devices and is optimized to perform fine even on devices way more modest than an IPhone, so it should run on your IPhone with no issue! There's a chance our game couldn't properly detect you were playing a web build from a phone, in this case all you have to do is go to settings and turn the Touchscreen Layout on! Hope this solves your problem, sorry if you already did that and I wasn't helpful.
Have a nice day!
