# 이투스 수강앱 vs 올클

The clearest difference is review sentiment: 올클 at 94% against 이투스 수강앱's 13%. 올클 also leads on rating (4.7 vs 1.3) and in-app purchases (none vs 1). 이투스 수강앱's advantage is ads (none vs shown). On price, ratings volume, device support and iOS requirement there is nothing between them.

Both are free to download. 이투스 수강앱 sells 1 one-off in-app purchase. 올클 asks for nothing beyond the download.

올클 holds the better App Store score, 4.7 against 1.3. Both are backed by a comparable volume of ratings — 13 and 34 respectively. Written reviews point the same way: 13% of 이투스 수강앱's written reviews are positive against 94% of 올클's.

이투스 수강앱 ships an update every 2 months, 올클 weekly. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 이투스 수강앱 | 올클 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.3 (13 ratings)](https://appshunter.io/ios/app/smart-study/id1486564159/reviews) | **[4.7 (34 ratings)](https://appshunter.io/ios/app/id1598278474/reviews)** |
| Number of ratings | 13 | **34** |
| Positive reviews | 12.5% of reviews | **94.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | **Free** | Ad-supported |
| Size | 64 MB | 94 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Etoos Education](https://appshunter.io/developer/403650801) | [모트모트](https://appshunter.io/developer/1490263044) |

## What reviewers say

### 이투스 수강앱

[App page](https://appshunter.io/ios/app/smart-study/id1486564159)

This app offers a streamlined learning experience with personalized course recommendations and exclusive content from top instructors. Enjoy features like quick streaming, offline downloads, direct Q&A with teachers, and customizable playback options for efficient study.

**Highlights:** Personalized course recommendations, Exclusive original content, Offline lecture downloads, Direct Q&A with instructors, Customizable playback speed and features, New UX/UI for user convenience

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 이투스머니충전 10,000 | $11.99 | one-time |


### 올클

[App page](https://appshunter.io/ios/app/id1598278474)

This app helps users manage their study time, tasks, and goals with features like a study timer, to-do list, and challenges. Earn in-app currency by studying to shop for productivity items. It also includes a vocabulary builder, diary, and motivational quotes.

**Highlights:** Study timer with app blocking, Simple to-do list management, Routine and challenge certification, Study group creation and communication, Vocabulary quizzes and review, Diary with topic suggestions, Motivational quotes and content

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

**In-app purchases:** none


## Frequently asked questions

### Is 이투스 수강앱 free?

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

### Is 올클 free?

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

### Which has better reviews, 이투스 수강앱 or 올클?

올클 is rated higher. 이투스 수강앱 averages 1.3 out of 5 from 13 ratings, while 올클 averages 4.7 from 34 ratings.

### Do 이투스 수강앱 or 올클 have ads?

올클 shows ads; 이투스 수강앱 does not.

### Which is updated more often, 이투스 수강앱 or 올클?

이투스 수강앱 ships an update every 2 months, and 올클 weekly. Most recently, 이투스 수강앱 was updated on September 21, 2026 and 올클 on September 22, 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.*