# 국어 능력 vs 레서

The clearest difference is update cadence: 레서 at every 8 days against 국어 능력's every 3 months. 국어 능력's advantage is iOS requirement (14.0 vs 16.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

국어 능력 ships an update every 3 months, 레서 every 8 days. The most recent releases landed on September 21, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | 국어 능력 | 레서 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/ai/id1619729664/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **100.0% of reviews** | 95.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | Free | Free |
| Size | 26 MB | 251 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [별책](https://appshunter.io/developer/569035377) | [Artificial Society Inc.](https://appshunter.io/developer/1627456359) |

## 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


### 레서

[App page](https://appshunter.io/ios/app/ai/id1619729664)

This app helps students from elementary to high school improve their Korean language skills. It offers AI-powered personalized learning, a vast library of curriculum-based content, and tools for reading, writing, and comprehension. Features include daily learning, monthly reading comprehension tests, and AI-powered feedback for written assignments.

**Highlights:** AI personalized learning curriculum, 30,000+ curriculum-based content, Daily Korean language practice, Monthly reading comprehension tests, AI writing feedback and scoring, AI eye-tracking for reading habits

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

**In-app purchases:** none


## Frequently asked questions

### Is 국어 능력 free?

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

### Is 레서 free?

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

### Do 국어 능력 or 레서 have ads?

Neither 국어 능력 nor 레서 shows ads.

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

국어 능력 ships an update every 3 months, and 레서 every 8 days. Most recently, 국어 능력 was updated on September 21, 2026 and 레서 on August 12, 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.*