# Know Abacus vs Soroban Training

The clearest difference is update cadence: Soroban Training at every 2 weeks against Know Abacus's every 2 months. Know Abacus's advantage is review sentiment (96% vs 78%) and iOS requirement (11.0 vs 18.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Know Abacus sells 1 one-off in-app purchase and Soroban Training sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Know Abacus against 4.7 for Soroban Training. Both are backed by a comparable volume of ratings — 67 and 176 respectively. Written reviews are what separate them: 96% of Know Abacus's written reviews are positive against 78% of Soroban Training's.

Know Abacus ships an update every 2 months, Soroban Training every 2 weeks. The most recent releases landed on July 6, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Know Abacus | Soroban Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (67 ratings)](https://appshunter.io/ios/app/know-abacus/id641867438/reviews) | [4.7 (176 ratings)](https://appshunter.io/ios/app/soroban-training/id1519658576/reviews) |
| Number of ratings | 67 | **176** |
| Positive reviews | **96.4% of reviews** | 77.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 28 MB | 8 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kittipong Mungnirun](https://appshunter.io/developer/488058533) | [Jumpei Adachi](https://appshunter.io/developer/1516414955) |

## What reviewers say

### Know Abacus

[App page](https://appshunter.io/ios/app/know-abacus/id641867438)

This app teaches children how to use an abacus for various math operations. It covers counting, addition, subtraction, multiplication, and division, helping to develop their mathematical abilities and brain potential. It offers multiple learning modes and customization options.

**Highlights:** Abacus counting, Addition and subtraction (1 & 2 digits), Multiplication and division (1-2 digits), Mental math practice, Review and random lessons, Customizable abacus (color, touch), Multiple languages

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### Soroban Training

[App page](https://appshunter.io/ios/app/soroban-training/id1519658576)

Learn and practice abacus skills directly on your touchscreen. Generate custom problems to hone your abacus techniques, even with a physical abacus.

**Highlights:** Touchscreen abacus simulation, Custom problem generation, Practice with physical abacus, Abacus learning tool

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Know Abacus free?

Know Abacus is free to download, with in-app purchases available.

### Is Soroban Training free?

Soroban Training is free to download, with in-app purchases available.

### Which has better reviews, Know Abacus or Soroban Training?

Know Abacus and Soroban Training are both rated 4.7 out of 5 on the App Store, from 67 and 176 ratings respectively.

### Do Know Abacus or Soroban Training have ads?

Both Know Abacus and Soroban Training show ads.

### Which is updated more often, Know Abacus or Soroban Training?

Know Abacus ships an update every 2 months, and Soroban Training every 2 weeks. Most recently, Know Abacus was updated on July 6, 2026 and Soroban Training on September 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*