# 개념원리ai vs 컴시간알리미

The clearest difference is rating: 컴시간알리미 at 5.0 against 개념원리ai's 4.2. 개념원리ai's advantage is ads (none vs shown) and review sentiment (95% vs 61%). On price, ratings volume, update cadence 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.

컴시간알리미 holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews complicate that: 95% of 개념원리ai's written reviews are positive against 61% of 컴시간알리미's, so the app with the better star average is not the one people write more warmly about.

개념원리ai ships an update fortnightly, 컴시간알리미 every 3 weeks. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 개념원리ai | 컴시간알리미 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/ai/id6467370741/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id6478664393/reviews)** |
| Number of ratings | **5** | 2 |
| Positive reviews | **95.1% of reviews** | 61.2% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 153 MB | 5 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [(주)개념원리](https://appshunter.io/developer/1589346598) | [컴시간](https://appshunter.io/developer/1733646932) |

## What reviewers say

### 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


### 컴시간알리미

[App page](https://appshunter.io/ios/app/id6478664393)

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

**In-app purchases:** none


## Frequently asked questions

### Is 개념원리ai free?

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

### Is 컴시간알리미 free?

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

### Which has better reviews, 개념원리ai or 컴시간알리미?

컴시간알리미 is rated higher. 개념원리ai averages 4.2 out of 5 from 5 ratings, while 컴시간알리미 averages 5.0 from 2 ratings.

### Do 개념원리ai or 컴시간알리미 have ads?

컴시간알리미 shows ads; 개념원리ai does not.

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

개념원리ai ships an update fortnightly, and 컴시간알리미 every 3 weeks. Most recently, 개념원리ai was updated on October 15, 2026 and 컴시간알리미 on October 12, 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.*