# 慣用句マスター vs CommonDivisor

The clearest difference is price: CommonDivisor at Free against 慣用句マスター's $2.99. CommonDivisor also leads on update cadence (weekly vs every 4 months). 慣用句マスター's advantage is ads (none vs shown) and device support (3 vs 1). On in-app purchases and iOS requirement there is nothing between them.

CommonDivisor is free to download; 慣用句マスター costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

慣用句マスター ships an update every 4 months, CommonDivisor weekly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 慣用句マスター | CommonDivisor |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Weekly** |
| Size | 138 MB | 19 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gloding Inc.](https://appshunter.io/developer/780228385) | [Katsuhiko Yao](https://appshunter.io/developer/1543188534) |

## What reviewers say

### 慣用句マスター

[App page](https://appshunter.io/ios/app/id807324630)

**Features:** macOS Compatibility

**In-app purchases:** none


### CommonDivisor

[App page](https://appshunter.io/ios/app/commondivisor/id6746661138)

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

**In-app purchases:** none


## Frequently asked questions

### Is 慣用句マスター free?

慣用句マスター costs $2.99, with no in-app purchases.

### Is CommonDivisor free?

CommonDivisor is free to download, with no in-app purchases.

### Do 慣用句マスター or CommonDivisor have ads?

CommonDivisor shows ads; 慣用句マスター does not.

### Which is updated more often, 慣用句マスター or CommonDivisor?

慣用句マスター ships an update every 4 months, and CommonDivisor weekly. Most recently, 慣用句マスター was updated on November 1, 2026 and CommonDivisor on October 30, 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.*