Sorozano suits children who are starting to learn numbers and arithmetic, and grows with them all the way to advanced mental math. The right path depends on your child's level and readiness more than their age alone.

None at all. Sorozano starts from absolute zero — the very first lesson teaches your child what a soroban even is. You don't need to know it either.

No. The interactive soroban inside the app closely mirrors the real tool. And if you ever buy a wooden soroban later, your child will already know their way around it.

The free version includes the complete first stage of the curriculum — enough for your child to learn the fundamentals and for you to judge the app. Super Sorozano unlocks the rest of the journey, all the way to advanced mental math.

From the parent space inside the app: you can follow your child's progress, results, and activity — presented simply and clearly, with no complicated charts.

No. There are no ads in the free version or the paid one. Your child learns in a closed, safe environment.

A short, regular session each day is usually enough. Sorozano's exercises are designed around a child's attention span — not long, exhausting sessions.