# Chappy vs Chalcack

The clearest difference is review sentiment: Chalcack at 97% against Chappy's 44%. Chalcack also leads on update cadence (every 2 days vs every 4 weeks). Chappy's advantage is in-app purchases (none vs 3). On price, ads, device support and iOS requirement there is nothing between them.

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

Chappy ships an update every 4 weeks, Chalcack every 2 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Chappy | Chalcack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (14 ratings)](https://appshunter.io/ios/app/chalcack-your-study-crush/id6747833381/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | 44.0% of reviews | **97.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 weeks | **Every 2 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 17 MB | 49 MB |
| Requires iOS | **18.0** | 18.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Saerom Shin](https://appshunter.io/developer/1716768656) | [Dong Hae Jang](https://appshunter.io/developer/1573538288) |

## What reviewers say

### Chappy

[App page](https://appshunter.io/ios/app/chappy-ai-quiz-solver/id6472210312)

Snap a photo of your homework problem and get instant answers with an AI tutor. This app provides immediate explanations for questions, helping you understand concepts without waiting for a teacher. Simply take a picture, crop it, and receive your solution.

**Highlights:** AI-powered problem solver, Instant answers, Photo recognition for questions, Immediate explanations, Homework assistance

**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 Chappy free?

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

### Is Chalcack free?

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

### Do Chappy or Chalcack have ads?

Both Chappy and Chalcack show ads.

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

Chappy ships an update every 4 weeks, and Chalcack every 2 days. Most recently, Chappy was updated on October 24, 2026 and Chalcack on October 28, 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.*