# EBS 중학프리미엄 vs 개념원리ai

The clearest difference is rating: 개념원리ai at 4.2 against EBS 중학프리미엄's 2.9. 개념원리ai also leads on in-app purchases (none vs 1) and review sentiment (95% vs 71%). EBS 중학프리미엄's advantage is ratings volume (31 vs 5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. EBS 중학프리미엄 sells 1 one-off in-app purchase. 개념원리ai asks for nothing beyond the download.

개념원리ai holds the better App Store score, 4.2 against 2.9. That said, the two scores are not equally well evidenced: EBS 중학프리미엄 has 31 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 71% of EBS 중학프리미엄's written reviews are positive against 95% of 개념원리ai's.

EBS 중학프리미엄 ships an update every 3 weeks, 개념원리ai fortnightly. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | EBS 중학프리미엄 | 개념원리ai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (31 ratings)](https://appshunter.io/ios/app/ebs/id1360224883/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/ai/id6467370741/reviews)** |
| Number of ratings | **31** | 5 |
| Positive reviews | 70.6% of reviews | **95.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 183 MB | 153 MB |
| Requires iOS | 13 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EBS(한국교육방송공사)](https://appshunter.io/developer/704213053) | [(주)개념원리](https://appshunter.io/developer/1589346598) |

## What reviewers say

### EBS 중학프리미엄

[App page](https://appshunter.io/ios/app/ebs/id1360224883)

Access a wide range of EBS middle school courses anytime, anywhere. Features include video lectures with subtitles, download options for offline viewing, and interactive learning tools like Q&A and study summaries. Stay updated with educational news and events.

**Highlights:** Offline course downloads, Adjustable playback speed, Subtitles for lectures, Q&A with teachers, Lecture summaries, Educational news updates

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 프리미엄 강의 1회 이용권 | $99.99 | one-time |


### 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 EBS 중학프리미엄 free?

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

### Is 개념원리ai free?

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

### Which has better reviews, EBS 중학프리미엄 or 개념원리ai?

개념원리ai is rated higher. EBS 중학프리미엄 averages 2.9 out of 5 from 31 ratings, while 개념원리ai averages 4.2 from 5 ratings.

### Do EBS 중학프리미엄 or 개념원리ai have ads?

Neither EBS 중학프리미엄 nor 개념원리ai shows ads.

### Which is updated more often, EBS 중학프리미엄 or 개념원리ai?

EBS 중학프리미엄 ships an update every 3 weeks, and 개념원리ai fortnightly. Most recently, EBS 중학프리미엄 was updated on October 14, 2026 and 개념원리ai on October 11, 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.*