# QUBE(큐브) vs Chalcack

QUBE(큐브) and Chalcack both sit at 5.0 stars, but that hides the real split: 97% of Chalcack's written reviews are positive against 57% of QUBE(큐브)'s. Chalcack also leads on update cadence (every 2 days vs every 3 weeks) and ratings volume (12 vs 1). QUBE(큐브)'s advantage is ads (none vs shown) and iOS requirement (15.0 vs 18.5). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. QUBE(큐브) sells 2 one-off in-app purchases and Chalcack sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for QUBE(큐브) against 5.0 for Chalcack. That said, the two scores are not equally well evidenced: Chalcack has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 57% of QUBE(큐브)'s written reviews are positive against 97% of Chalcack's.

QUBE(큐브) ships an update every 3 weeks, Chalcack every 2 days. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | QUBE(큐브) | Chalcack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/qube/id1377555791/reviews) | [5.0 (12 ratings)](https://appshunter.io/ios/app/chalcack-your-study-crush/id6747833381/reviews) |
| Number of ratings | 1 | **12** |
| Positive reviews | 57.4% of reviews | **97.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 61 MB | 49 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MegaStudyEdu](https://appshunter.io/developer/1050903129) | [Dong Hae Jang](https://appshunter.io/developer/1573538288) |

## 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 |


### Chalcack

[App page](https://appshunter.io/ios/app/chalcack-your-study-crush/id6747833381)

This AI-powered study companion helps students master difficult subjects by providing step-by-step solutions and explanations. It recognizes problems from photos and offers a personalized study vault for review. Get instant academic support anytime, anywhere.

**Highlights:** Snap and solve problems from photos, AI-powered step-by-step explanations, Support for Math, Science, English, and more, Master core concepts and principles, Personal study vault and review library, 24/7 AI academic assistance

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium subscription | $9.99 | per month |
| Yearly Pro (Special Offer) | $59.99 | per year |
| Yearly Premium subscription | $79.99 | per year |


## Frequently asked questions

### Is QUBE(큐브) free?

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

### Is Chalcack free?

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

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

QUBE(큐브) and Chalcack are both rated 5.0 out of 5 on the App Store, from 1 and 12 ratings respectively.

### Do QUBE(큐브) or Chalcack have ads?

Chalcack shows ads; QUBE(큐브) does not.

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

QUBE(큐브) ships an update every 3 weeks, and Chalcack every 2 days. Most recently, QUBE(큐브) was updated on October 16, 2026 and Chalcack on October 18, 2026.

---

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