# 리드키(ReadKey) vs 국어

The clearest difference is in-app purchases: 리드키(ReadKey) at none against 국어's 5. 리드키(ReadKey) also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 국어 sells 5 in-app purchases, starting at $5.99 per month. 리드키(ReadKey) asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 리드키(ReadKey) | 국어 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 66 MB | 107 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Goodwillhunting, Inc](https://appshunter.io/developer/1061875607) | [SEO JAEHYEONG](https://appshunter.io/developer/6783699263) |

## What reviewers say

### 리드키(ReadKey)

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

**In-app purchases:** none


### 국어

[App page](https://appshunter.io/ios/app/id6783699261)

Master Korean vocabulary for academic success and practical communication. This app offers structured learning paths from elementary to adult levels, incorporating interactive exercises, spaced repetition, and engaging games to reinforce word knowledge. Build a personalized vocabulary collection and track your progress with detailed diagnostics.

**Highlights:** Structured learning paths for all ages, Interactive exercises and quizzes, Spaced repetition for effective memorization, Engaging vocabulary games, Progress tracking and diagnostics, Offline learning support, Customizable vocabulary lists

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 프리미엄 월간 | $5.99 | per month |
| 프리미엄 3개월 | $14.99 | per 3 months |
| 프리미엄 6개월 | $22.99 | per 6 months |
| 프리미엄 연간 | $29.99 | per year |
| 프리미엄 평생 | $69.99 | one-time |


## Frequently asked questions

### Is 리드키(ReadKey) free?

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

### Is 국어 free?

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

### Do 리드키(ReadKey) or 국어 have ads?

국어 shows ads; 리드키(ReadKey) does not.

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

리드키(ReadKey) ships an update fortnightly, and 국어 fortnightly. Most recently, 리드키(ReadKey) was updated on October 7, 2026 and 국어 on October 8, 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.*