# Add Up 10. vs そろばん学習ドリル Ext

The clearest difference is ads: そろばん学習ドリル Ext at none against Add Up 10.'s shown. そろばん学習ドリル Ext also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Add Up 10. ships an update every 3 months, そろばん学習ドリル Ext every 5 months. The most recent releases landed on September 28, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Add Up 10. | そろばん学習ドリル Ext |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | — | Free |
| Size | 58 MB | 24 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MASAHIRO MIZUTANI](https://appshunter.io/developer/368158224) | [ryo itou](https://appshunter.io/developer/1435019729) |

## What reviewers say

### Add Up 10.

[App page](https://appshunter.io/ios/app/add-up-10/id562494612)

**In-app purchases:** none


### そろばん学習ドリル Ext

[App page](https://appshunter.io/ios/app/ext/id1449114393)

This app offers four courses to help beginners learn abacus calculation. It includes exercises for placing numbers, simple addition, addition of ten numbers, and auditory addition. Progress is tracked, and difficulty increases with proficiency.

**Highlights:** Placing numbers on the abacus, Two-digit addition practice, Addition of ten numbers, Auditory addition exercises, Progress tracking, Adaptive difficulty levels

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

**In-app purchases:** none


## Frequently asked questions

### Is Add Up 10. free?

Add Up 10. is free to download, with no in-app purchases.

### Is そろばん学習ドリル Ext free?

そろばん学習ドリル Ext is free to download, with no in-app purchases.

### Do Add Up 10. or そろばん学習ドリル Ext have ads?

Add Up 10. shows ads; そろばん学習ドリル Ext does not.

### Which is updated more often, Add Up 10. or そろばん学習ドリル Ext?

Add Up 10. ships an update every 3 months, and そろばん学習ドリル Ext every 5 months. Most recently, Add Up 10. was updated on September 28, 2026 and そろばん学習ドリル Ext on September 6, 2026.

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