A blast!
Got curious about this app...
I teach in grade 6 in Canada (kids 11 and 12) and used both Quick Math and Quick Math+ before.
My daughters (aged 4 and 7) instantly fell in love with this app. The difficulty does ramp up a bit for my youngest, but the cute monster creation/collection feature keeps them both actively engaged together.
Highly recommended!
Drachenfels about
Quick Math Jr., v1.1.1