# 레서 vs Study AI Lab

The clearest difference is in-app purchases: 레서 at none against Study AI Lab's 4. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Study AI Lab sells 4 in-app purchases, starting at $4.99 per month. 레서 asks for nothing beyond the download.

## The numbers

| Metric | 레서 | Study AI Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/ai/id1619729664/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 95.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | — |
| Monetization | Free | — |
| Size | 251 MB | 48 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Artificial Society Inc.](https://appshunter.io/developer/1627456359) | [Marwa Hussein](https://appshunter.io/developer/1800083962) |

## What reviewers say

### 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


### Study AI Lab

[App page](https://appshunter.io/ios/app/study-ai-lab/id6790106906)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Pro Monthly | $17.99 | per month |
| Premium Yearly | $49.99 | per year |
| Pro Yearly | $150.00 | per year |


## Frequently asked questions

### Is 레서 free?

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

### Is Study AI Lab free?

Study AI Lab is free to download, with in-app purchases available.

### Do 레서 or Study AI Lab have ads?

Neither 레서 nor Study AI Lab shows ads.

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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.*