Level A starts with simple counting. Even toddlers may be able to start learning by writing numbers.
There are fourteen levels (A to N), from addition, subtraction, multiplication, division to fractions. It covers elementary school (K5) math.
AI-based technology recognizes kid's handwritten numbers. It's easy, intuitive and natural way of solving math.
Having brothers and sisters? You can manage up to four kids in one and the same app and device because it provides a separate progress sheet for every kid.