# 콴다과외 vs 개념원리ai

The clearest difference is review sentiment: 개념원리ai at 95% against 콴다과외's 30%. 개념원리ai also leads on iOS requirement (13.0 vs 15.8). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

콴다과외 ships an update monthly, 개념원리ai fortnightly. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | 콴다과외 | 개념원리ai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/ai/id6467370741/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 30.0% of reviews | **95.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | Free |
| Size | 58 MB | 153 MB |
| Requires iOS | 15.8 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mathpresso](https://appshunter.io/developer/1145838916) | [(주)개념원리](https://appshunter.io/developer/1589346598) |

## What reviewers say

### 콴다과외

[App page](https://appshunter.io/ios/app/11/id1594158133)

Experience academic improvement with personalized online tutoring from top university instructors. Engage in real-time voice and handwriting lessons anytime, anywhere. This platform offers targeted review services to overcome weaknesses and master concepts.

**Highlights:** 1:1 personalized online tutoring, Real-time voice and handwriting sharing, Verified instructors from top universities, Smart matching system for teachers, Targeted review for weakness management, Concept and type mastery

**Features:** Vision Pro support

**In-app purchases:** none


### 개념원리ai

[App page](https://appshunter.io/ios/app/ai/id6467370741)

This app combines a popular math textbook with AI to offer personalized learning. It provides free assessments with detailed explanations, allows users to create custom problem notes, and features a ranking system for friendly competition. Prepare for exams with AI-predicted questions and access a vast problem bank for all middle and high school levels.

**Highlights:** Personalized assessments with free detailed explanations, Customizable problem notes for focused review, AI-predicted exam questions based on school and curriculum, Extensive problem bank for all grades, Interactive ranking system and missions for motivation, Study groups and Q&A for collaborative learning

**In-app purchases:** none


## Frequently asked questions

### Is 콴다과외 free?

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

### Is 개념원리ai free?

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

### Do 콴다과외 or 개념원리ai have ads?

Neither 콴다과외 nor 개념원리ai shows ads.

### Which is updated more often, 콴다과외 or 개념원리ai?

콴다과외 ships an update monthly, and 개념원리ai fortnightly. Most recently, 콴다과외 was updated on October 16, 2026 and 개념원리ai on October 19, 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.*