# 일본어 vs 리드키(ReadKey)

The clearest difference is in-app purchases: 리드키(ReadKey) at none against 일본어's 1. 리드키(ReadKey) also leads on ads (none vs shown) and update cadence (fortnightly vs every 2 months). 일본어's advantage is iOS requirement (12.1 vs 16.6). On price and device support there is nothing between them.

Both are free to download. 일본어 sells 1 one-off in-app purchase. 리드키(ReadKey) asks for nothing beyond the download.

일본어 ships an update every 2 months, 리드키(ReadKey) fortnightly. The most recent releases landed on September 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 일본어 | 리드키(ReadKey) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 115 MB | 66 MB |
| Requires iOS | **12.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SHINGO MATSUO](https://appshunter.io/developer/1493414113) | [Goodwillhunting, Inc](https://appshunter.io/developer/1061875607) |

## What reviewers say

### 일본어

[App page](https://appshunter.io/ios/app/id1573390305)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 앱 정식 버전 | $3.99 | one-time |


### 리드키(ReadKey)

[App page](https://appshunter.io/ios/app/readkey/id6748025836)

**In-app purchases:** none


## Frequently asked questions

### Is 일본어 free?

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

### Is 리드키(ReadKey) free?

리드키(ReadKey) is free to download, with no in-app purchases.

### Do 일본어 or 리드키(ReadKey) have ads?

일본어 shows ads; 리드키(ReadKey) does not.

### Which is updated more often, 일본어 or 리드키(ReadKey)?

일본어 ships an update every 2 months, and 리드키(ReadKey) fortnightly. Most recently, 일본어 was updated on September 24, 2026 and 리드키(ReadKey) on October 7, 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.*