# One Kanji Clock vs 一起学成语

The clearest difference is in-app purchases: 一起学成语 at none against One Kanji Clock's 1. 一起学成语 also leads on ads (none vs shown). One Kanji Clock's advantage is update cadence (every 2 months vs every 8 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. One Kanji Clock sells 1 one-off in-app purchase. 一起学成语 asks for nothing beyond the download.

One Kanji Clock ships an update every 2 months, 一起学成语 every 8 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | One Kanji Clock | 一起学成语 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 8 months |
| Size | 18 MB | 183 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mihoko Araki](https://appshunter.io/developer/1476136915) | [沫 王](https://appshunter.io/developer/1609909724) |

## What reviewers say

### One Kanji Clock

[App page](https://appshunter.io/ios/app/one-kanji-clock/id6468893847)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Kanji Clock with no ads | $2.99 | one-time |


### 一起学成语

[App page](https://appshunter.io/ios/app/id6475033845)

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

**In-app purchases:** none


## Frequently asked questions

### Is One Kanji Clock free?

One Kanji Clock is free to download, with in-app purchases available.

### Is 一起学成语 free?

一起学成语 is free to download, with no in-app purchases.

### Do One Kanji Clock or 一起学成语 have ads?

One Kanji Clock shows ads; 一起学成语 does not.

### Which is updated more often, One Kanji Clock or 一起学成语?

One Kanji Clock ships an update every 2 months, and 一起学成语 every 8 months. Most recently, One Kanji Clock was updated on November 3, 2026 and 一起学成语 on November 4, 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.*