Gah! Thanks for telling us Patchua. Changing screen resolution might help?
Hey guys! I have the same issue. It does seem like a resolution/scaling/UI-element-anchoring problem, but the Unity settings dialogue only gives me an option for my native resolution (1440x900) and a windowed checkbox. I even tried manually editing the playerprefs plist, but that wasn't effecting the resolution.
Anyways, the few minute I did play seemed promising!! I'm super fixated on the potential for language learning through games, so I'm excited to see where this project goes! Looks great so far. :)