# QUBE(큐브) vs Chappy

The clearest difference is in-app purchases: Chappy at none against QUBE(큐브)'s 2. QUBE(큐브)'s advantage is ads (none vs shown) and review sentiment (58% vs 44%). On price and update cadence there is nothing between them.

Both are free to download. QUBE(큐브) sells 2 one-off in-app purchases. Chappy asks for nothing beyond the download.

QUBE(큐브) ships an update every 3 weeks, Chappy every 4 weeks. The most recent releases landed on September 26, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | QUBE(큐브) | Chappy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/qube/id1377555791/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **58.5% of reviews** | 44.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 42 MB | 38 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MegaStudyEdu](https://appshunter.io/developer/1050903129) | [Saerom Shin](https://appshunter.io/developer/1716768656) |

## 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 |


### 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


## Frequently asked questions

### Is QUBE(큐브) free?

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

### Is Chappy free?

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

### Do QUBE(큐브) or Chappy have ads?

Chappy shows ads; QUBE(큐브) does not.

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

QUBE(큐브) ships an update every 3 weeks, and Chappy every 4 weeks. Most recently, QUBE(큐브) was updated on September 26, 2026 and Chappy on September 19, 2026.

---

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