# そろばん問題集 vs Abacus Lesson

The clearest difference is rating: Abacus Lesson at 5.0 against そろばん問題集's 4.8. Abacus Lesson also leads on iOS requirement (11.0 vs 17.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. そろばん問題集 sells 1 in-app purchase, starting at $1.99 per month and Abacus Lesson sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Abacus Lesson holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 5 and 8 respectively.

そろばん問題集 ships an update every 6 weeks, Abacus Lesson monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | そろばん問題集 | Abacus Lesson |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (5 ratings)](https://appshunter.io/ios/app/id1527023159/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/abacus-lesson-division/id1593317741/reviews)** |
| Number of ratings | 5 | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 132 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [takeshi inoue](https://appshunter.io/developer/1452042026) | [Hirokazu Komatsu](https://appshunter.io/developer/1523833531) |

## What reviewers say

### そろばん問題集

[App page](https://appshunter.io/ios/app/id1527023159)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $1.99 | per month |


### Abacus Lesson

[App page](https://appshunter.io/ios/app/abacus-lesson-division/id1593317741)

Learn the simple and fast method of division using an abacus. This app focuses on developing mental calculation skills by leveraging the abacus technique. It's recommended to master addition, subtraction, and multiplication with an abacus first.

**Highlights:** Learn abacus division techniques, Develop mental calculation skills, Focus on Soroban method, Step-by-step division instruction, Builds on addition, subtraction, multiplication

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donation Lv1 for hiding Ad | $1.99 | one-time |
| Donation Lv2 for hiding Ad | $3.99 | one-time |
| Donation Lv3 for hiding Ad | $8.99 | one-time |


## Frequently asked questions

### Is そろばん問題集 free?

そろばん問題集 is free to download, with in-app purchases available.

### Is Abacus Lesson free?

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

### Which has better reviews, そろばん問題集 or Abacus Lesson?

Abacus Lesson is rated higher. そろばん問題集 averages 4.8 out of 5 from 5 ratings, while Abacus Lesson averages 5.0 from 8 ratings.

### Do そろばん問題集 or Abacus Lesson have ads?

Both そろばん問題集 and Abacus Lesson show ads.

### Which is updated more often, そろばん問題集 or Abacus Lesson?

そろばん問題集 ships an update every 6 weeks, and Abacus Lesson monthly. Most recently, そろばん問題集 was updated on October 24, 2026 and Abacus Lesson on October 24, 2026.

---

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