# 국어 능력 vs StatRedPen

The clearest difference is in-app purchases: 국어 능력 at none against StatRedPen's 2. 국어 능력 also leads on ads (none vs shown) and device support (3 vs 1). StatRedPen's advantage is update cadence (every 2 days vs every 3 months). On price there is nothing between them.

Both are free to download. StatRedPen sells 2 one-off in-app purchases. 국어 능력 asks for nothing beyond the download.

국어 능력 ships an update every 3 months, StatRedPen every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 국어 능력 | StatRedPen |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 26 MB | 5 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [별책](https://appshunter.io/developer/569035377) | [丽佳 施](https://appshunter.io/developer/1894580777) |

## What reviewers say

### 국어 능력

[App page](https://appshunter.io/ios/app/id1557583975)

This app offers a structured approach to Korean language studies, focusing on past exam questions for civil service exams. It provides mobile-optimized practice, detailed explanations, and personalized learning modes to help users improve their skills and verify their knowledge.

**Highlights:** Past civil service exam questions (2017+), Mobile-optimized practice interface, Apple Pencil note-taking on iPad, Detailed 'Chorokpen' annotation explanations, Various study modes (subject, topic, keyword), Automatic progress tracking and iCloud sync

**Features:** Vision Pro support

**In-app purchases:** none


### StatRedPen

[App page](https://appshunter.io/ios/app/statredpen-stats-exam-grader/id6794589846)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 완전판 해금 | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is 국어 능력 free?

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

### Is StatRedPen free?

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

### Do 국어 능력 or StatRedPen have ads?

StatRedPen shows ads; 국어 능력 does not.

### Which is updated more often, 국어 능력 or StatRedPen?

국어 능력 ships an update every 3 months, and StatRedPen every 2 days. Most recently, 국어 능력 was updated on November 3, 2026 and StatRedPen on October 31, 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.*