Learn fast maths the ancient way — soroban abacus for all ages, step by step.
What you'll learn
Counting, simple sums, small friends (swap rules), big friends (carry rules) and drills.
Long chains, double-digit numbers, mental maths, and the legendary 16-row titan drill.
Combine any sections into a custom quiz or learning session to test everything at once.
Downloadable voice packs in English, Japanese, Hindi, and Korean.
Add multiple learner profiles — perfect for families and classrooms.
See results after every session and revisit problems you got wrong.