Soroban vs UCMAS vs Kumon vs mental-math apps: which is right for your child?
Soroban, UCMAS, Kumon or an app? Here is a plain comparison.
They are not the same thing. UCMAS and ALOHA are franchise abacus programs with their own level ladders; Kumon is worksheet arithmetic with no abacus at all; mental-math apps are daily practice tools, some based on the soroban and some not. Choose by three questions: does the child move real beads, who checks *how* they went wrong, and does the level system lead to a recognised exam?
Side by side
| Traditional soroban school | UCMAS / ALOHA | Kumon (math) | Mental-math apps | |
|---|---|---|---|---|
| Tool | Physical soroban, then mental abacus | Physical soroban, then mental abacus | Pencil and worksheets, no abacus | Screen; some use a soroban layout, some do not |
| Levels | Japanese kyu/dan (10th kyu → 1st kyu → 1st–10th dan) | Own ladder: UCMAS runs 8–10 levels depending on starting age, over 3–4 years | Own levels (7A → O), by worksheet | Own levels, rarely tied to any exam |
| Exams | Recognised Japanese exam bodies | Franchise certificates and internal competitions | Franchise certificates | Usually none |
| Who checks mistakes | Teacher, weekly | Teacher, weekly | Worksheet marking, weekly | The app, every session |
| Typical cost (US) | Varies widely; often comparable to a tutoring center | Varies by center; US examples: UCMAS about $175–195 per 4 weekly lessons plus enrolment and materials, ALOHA about $164 a month plus $49 materials per level | Varies by center and subject; no published national price | Free with ads, or about $2–3 a month up to a $50 one-time purchase for the paid ones |
| Ages | 5 to teens | 5–13 | 3 to high school | 4–14 for most |
| Strength | Real method, real exam, teacher's eye on the fingers | Structured program, many locations | Habit and repetition | Daily practice, instant feedback |
| Weakness | Weekly gap; needs home practice | Levels do not carry over; program ends at 13 | No mental abacus; speed comes from drilling | Finger technique not corrected; levels often end with the app |
What each one is for
- Traditional soroban school. The full method taught by a teacher who watches the fingers. Its weakness is the six days between lessons; without home practice the first half of each lesson is revision.
- UCMAS, ALOHA and similar franchises. Soroban-based, structured, widely available outside Japan. The ladder is the franchise's own, so a child who moves to a Japanese-style school or wants a recognised exam has to be re-placed by digits and number of terms. Programs end around age 13.
- Kumon. Not an abacus method. Children learn arithmetic by repeating worksheets until fast. It builds routine well, but there is no mental bead image, so speed comes from memorised facts, not from a visual method.
- Mental-math apps. Best used as the daily ten minutes between lessons. The good ones show the bead move that most likely went wrong and build tomorrow's practice from today's errors. The weak ones are games with numbers. Almost none link their levels to a real exam; a few, such as Soroban Kingdom, let a school set the level table to match the exam system it follows.
The combination that works
A school (finger technique, exam, a teacher who sees the child) plus ten minutes a day at home on an app or worksheet whose levels match the school's. The mismatch to avoid is "level 5 at home, 7th kyu at school": children then have two ladders in their head and parents ask which is real.
If there is no soroban school nearby, use an app plus a physical soroban and keep the app's level ladder aligned to a recognised exam format, so the child can sit an exam later without starting over.
The conditions of good soroban learning are the same across all four: real beads early, visible mistakes, short daily practice, and levels that lead somewhere.
Frequently asked questions
Is Kumon an abacus program?
No. Kumon teaches arithmetic through pencil-and-paper worksheets. It does not use a soroban and does not develop mental abacus.
Are UCMAS levels the same as Japanese kyu?
No. UCMAS has its own ladder (10 levels for children who start at 5–7, 8 for those who start at 8–13). To compare, look at the digits and number of terms in each level's problems rather than the level name. A Japanese-style 7th kyu is roughly 2-digit addition with 10 terms, 2-digit × 2-digit multiplication and 3-digit ÷ 1-digit division.
Can an app replace a teacher?
For daily practice, yes. For finger technique and for sitting a recognised exam, no. The app cannot see the hands, and official exams are held by exam bodies and schools.
You learn far faster by moving the beads than by reading. In Soroban Kingdom, levels 20–16 are free forever with no sign-up, on any phone or computer.
▶ Open Soroban Kingdom