# QUBE(큐브) vs 이투스 수강앱

The clearest difference is review sentiment: QUBE(큐브) at 58% against 이투스 수강앱's 13%. QUBE(큐브) also leads on rating (5.0 vs 1.3) and update cadence (every 3 weeks vs every 2 months). 이투스 수강앱's advantage is monetization model (free vs free with in-app purchases) and ratings volume (13 vs 1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. QUBE(큐브) sells 2 one-off in-app purchases and 이투스 수강앱 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

QUBE(큐브) holds the better App Store score, 5.0 against 1.3. That said, the two scores are not equally well evidenced: 이투스 수강앱 has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 58% of QUBE(큐브)'s written reviews are positive against 13% of 이투스 수강앱's.

QUBE(큐브) ships an update every 3 weeks, 이투스 수강앱 every 2 months. Both last shipped on September 21, 2026.

## The numbers

| Metric | QUBE(큐브) | 이투스 수강앱 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/qube/id1377555791/reviews)** | [1.3 (13 ratings)](https://appshunter.io/ios/app/smart-study/id1486564159/reviews) |
| Number of ratings | 1 | **13** |
| Positive reviews | **58.5% of reviews** | 12.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 42 MB | 64 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MegaStudyEdu](https://appshunter.io/developer/1050903129) | [Etoos Education](https://appshunter.io/developer/403650801) |

## What reviewers say

### QUBE(큐브)

[App page](https://appshunter.io/ios/app/qube/id1377555791)

Get instant help with homework from verified university students. Snap a photo of any question for quick solutions or ask detailed questions for personalized guidance. Access study tips and college admissions advice.

**Highlights:** Photo search for math and science problems, Ask questions to university student tutors, Get step-by-step solutions, 1:1 online tutoring sessions, Study tips and college admissions advice, 24/7 question and answer service

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1Q | $0.99 | one-time |
| 2Q | $0.99 | one-time |


### 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 |


## Frequently asked questions

### Is QUBE(큐브) free?

QUBE(큐브) is free to download, with in-app purchases available.

### Is 이투스 수강앱 free?

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

### Which has better reviews, QUBE(큐브) or 이투스 수강앱?

QUBE(큐브) is rated higher. QUBE(큐브) averages 5.0 out of 5 from 1 ratings, while 이투스 수강앱 averages 1.3 from 13 ratings.

### Do QUBE(큐브) or 이투스 수강앱 have ads?

Neither QUBE(큐브) nor 이투스 수강앱 shows ads.

### Which is updated more often, QUBE(큐브) or 이투스 수강앱?

QUBE(큐브) ships an update every 3 weeks, and 이투스 수강앱 every 2 months. Most recently, QUBE(큐브) was updated on September 21, 2026 and 이투스 수강앱 on September 21, 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.*