# 수학대왕 vs Chalcack

The clearest difference is rating: Chalcack at 5.0 against 수학대왕's 4.4. Chalcack also leads on update cadence (every 2 days vs monthly) and review sentiment (97% vs 88%). 수학대왕's advantage is in-app purchases (none vs 3) and ratings volume (36 vs 12). On price, ads and device support there is nothing between them.

Both are free to download. Chalcack sells 3 in-app purchases, starting at $9.99 per month. 수학대왕 asks for nothing beyond the download.

Chalcack holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 36 and 12 respectively. Written reviews point the same way: 88% of 수학대왕's written reviews are positive against 97% of Chalcack's.

수학대왕 ships an update monthly, Chalcack every 2 days. The most recent releases landed on October 19, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | 수학대왕 | Chalcack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (36 ratings)](https://appshunter.io/ios/app/ai/id1501165233/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/chalcack-your-study-crush/id6747833381/reviews)** |
| Number of ratings | **36** | 12 |
| Positive reviews | 87.5% of reviews | **97.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 86 MB | 49 MB |
| Requires iOS | **15.1** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Turing Co.,Ltd.](https://appshunter.io/developer/1501165232) | [Dong Hae Jang](https://appshunter.io/developer/1573538288) |

## What reviewers say

### 수학대왕

[App page](https://appshunter.io/ios/app/ai/id1501165233)

This app offers a comprehensive solution for math studies, providing AI-driven analysis, practice problems, and concise video lectures. It helps users improve their scores by identifying weak areas and offering tailored learning paths. Features include personalized problem sets, original content, and progress tracking.

**Highlights:** AI-driven skill analysis, Personalized problem sets, Original practice problems, Short, efficient video lectures, Progress tracking and reports, Daily scholarship system

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

**In-app purchases:** none


### 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 수학대왕 free?

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

### Is Chalcack free?

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

### Which has better reviews, 수학대왕 or Chalcack?

Chalcack is rated higher. 수학대왕 averages 4.4 out of 5 from 36 ratings, while Chalcack averages 5.0 from 12 ratings.

### Do 수학대왕 or Chalcack have ads?

Both 수학대왕 and Chalcack show ads.

### Which is updated more often, 수학대왕 or Chalcack?

수학대왕 ships an update monthly, and Chalcack every 2 days. Most recently, 수학대왕 was updated on October 19, 2026 and Chalcack on October 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.*