Parents who want to strengthen their child’s mental arithmetic face a choice: a traditional Japanese abacus, or one of the many mental math apps on tablets and phones. Both promise better calculation skills, but they work in very different ways.
This comparison explains what each approach really trains, its strengths and limits, and how to choose — or combine them — for your child.
What soroban trains
The soroban is a method, not just a tool. Children physically build numbers with beads, see tens and ones on separate rods, and learn rules such as the friends of 5 and 10 that explain how numbers combine. With time, many children picture the abacus and calculate in their heads (anzan).
Its strengths are understanding and transfer to mental calculation. Its limits: it takes regular practice over months, and beginners usually need an adult or a structured course to guide them.
What mental math apps train
Most mental math apps present quick questions — often number facts such as 7 + 8 or 6 × 4 — with points, levels, timers and rewards. They are very good at providing a lot of practice in a short time and keeping children engaged.
Their limits: many apps check answers without teaching a strategy. A child who does not understand why 7 + 8 = 15 may guess, count on fingers or memorise answers without building number sense. Quality also varies greatly between apps, and rewards can push children towards speed at the expense of accuracy.
Side-by-side comparison
The table below summarises the main differences.
| Criterion | Soroban | Typical mental math app |
|---|---|---|
| Main goal | Understanding and a calculation method | Fast recall and practice volume |
| Place value | Visible on the rods | Rarely shown |
| Strategy taught | Yes: friends of 5 and 10 | Often not; checks answers only |
| Hands-on learning | Yes, with a physical abacus | No, screen only |
| Motivation | Progress and mastery | Points, levels, rewards |
| Adult support needed | More at the beginning | Less |
| Path to mental calculation | Direct (anzan) | Indirect |
| Screen time | None with a physical abacus | Yes |
Which is better for your child?
There is no single answer, but the child’s situation gives a clear direction:
- Your child counts on fingers or confuses tens and ones: start with soroban, which makes place value and number combinations visible.
- Your child understands calculations but is slow with facts: short app sessions can add useful practice.
- Your child loses motivation easily: combine soroban with game-like online practice and visible progress tracking.
- You want to limit screen time: a physical soroban covers both learning and practice.
The best of both: a combined approach
Soroban and digital practice are not enemies. A digital soroban keeps the method of the abacus while adding the convenience and feedback of a screen. A balanced week might look like this:
- Three or four days: 10 minutes with a real soroban to learn and consolidate rules.
- One or two days: short practice on the virtual soroban or the timed training.
- Occasionally: printable worksheets for screen-free review.
When choosing any app, check three things: does it explain strategies, does it adapt difficulty to the child, and does it value accuracy as well as speed? For a deeper comparison of tools, read physical soroban vs digital soroban.
Conclusion
Soroban teaches children how numbers work and gives them a method that leads to mental calculation. Mental math apps are good at providing motivating, high-volume practice of number facts. For most children, the strongest approach is to learn with the soroban and use digital practice as a complement, not a replacement.
To begin, explore the free soroban learning path.
Frequently asked questions
Is soroban better than math apps for kids?
For understanding numbers and learning a calculation method, yes. For quick practice of number facts, apps can be useful. Many families combine both.
Can a math app teach mental arithmetic?
Some can help with practice, but most do not teach strategies. Children learn mental arithmetic best when they understand how numbers are composed, which the soroban makes visible.
Is a virtual soroban the same as a math app?
No. A virtual soroban reproduces the abacus and its method on screen, while most math apps only ask questions and check answers.
How much screen time is reasonable for math practice?
Short, focused sessions of about 10 minutes are enough for practice. Alternating with a physical abacus or worksheets keeps screen time low.