# 레서 vs 상식도파민

The clearest difference is rating: 상식도파민 at 4.0 against 레서's 2.5. 레서's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. 상식도파민 sells 2 in-app purchases, starting at $2.99 per month. 레서 asks for nothing beyond the download.

상식도파민 holds the better App Store score, 4.0 against 2.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews complicate that: 95% of 레서's written reviews are positive against 84% of 상식도파민's, so the app with the better star average is not the one people write more warmly about.

레서 ships an update every 8 days, 상식도파민 weekly. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | 레서 | 상식도파민 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/ai/id1619729664/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/id6740456795/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | **95.2% of reviews** | 84.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 days | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 251 MB | 136 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Artificial Society Inc.](https://appshunter.io/developer/1627456359) | [Sunghee Lee](https://appshunter.io/developer/1477689060) |

## 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


### 상식도파민

[App page](https://appshunter.io/ios/app/id6740456795)

Discover fascinating facts across a wide range of topics, from space to economics, presented in a short, engaging format. Track your learning journey and enjoy a personalized experience with continuously updated content.

**Highlights:** Short-form knowledge content, Diverse topic categories, Intuitive scrolling interface, Personalized topic selection, Learning progress tracking, Continuous content updates

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1개월 Premium | $2.99 | per month |
| 1년 Premium | $19.99 | per year |


## Frequently asked questions

### Is 레서 free?

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

### Is 상식도파민 free?

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

### Which has better reviews, 레서 or 상식도파민?

상식도파민 is rated higher. 레서 averages 2.5 out of 5 from 2 ratings, while 상식도파민 averages 4.0 from 1 ratings.

### Do 레서 or 상식도파민 have ads?

상식도파민 shows ads; 레서 does not.

### Which is updated more often, 레서 or 상식도파민?

레서 ships an update every 8 days, and 상식도파민 weekly. Most recently, 레서 was updated on October 24, 2026 and 상식도파민 on October 23, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*