# 나이스플러스(NEIS+) vs Chalcack

나이스플러스(NEIS+) and Chalcack both sit at 5.0 stars, but that hides the real split: 97% of Chalcack's written reviews are positive against 55% of 나이스플러스(NEIS+)'s. Chalcack also leads on update cadence (every 2 days vs fortnightly) and ratings volume (12 vs 2). 나이스플러스(NEIS+)'s advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, rating and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for 나이스플러스(NEIS+) against 5.0 for Chalcack. That said, the two scores are not equally well evidenced: Chalcack has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 55% of 나이스플러스(NEIS+)'s written reviews are positive against 97% of Chalcack's.

나이스플러스(NEIS+) ships an update fortnightly, Chalcack every 2 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 나이스플러스(NEIS+) | Chalcack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/neis-plus/id1664015586/reviews) | [5.0 (12 ratings)](https://appshunter.io/ios/app/chalcack-your-study-crush/id6747833381/reviews) |
| Number of ratings | 2 | **12** |
| Positive reviews | 55.0% of reviews | **97.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 11 MB | 49 MB |
| Requires iOS | **14.5** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [한국교육학술정보원](https://appshunter.io/developer/376298432) | [Dong Hae Jang](https://appshunter.io/developer/1573538288) |

## What reviewers say

### 나이스플러스(NEIS+)

[App page](https://appshunter.io/ios/app/neis-plus/id1664015586)

This app facilitates seamless online and offline learning for teachers and students. Educators can easily create lessons, assignments, and quizzes, while students can submit work, manage notes, and register for courses.

**Highlights:** Online and offline lesson creation, Assignment submission and grading, Self-directed learning with quizzes and notes, Online course registration for high school credits, Attendance tracking and observation records, School information and meal schedules

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

**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 나이스플러스(NEIS+) free?

나이스플러스(NEIS+) is free to download, with no in-app purchases.

### Is Chalcack free?

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

### Which has better reviews, 나이스플러스(NEIS+) or Chalcack?

나이스플러스(NEIS+) and Chalcack are both rated 5.0 out of 5 on the App Store, from 2 and 12 ratings respectively.

### Do 나이스플러스(NEIS+) or Chalcack have ads?

Chalcack shows ads; 나이스플러스(NEIS+) does not.

### Which is updated more often, 나이스플러스(NEIS+) or Chalcack?

나이스플러스(NEIS+) ships an update fortnightly, and Chalcack every 2 days. Most recently, 나이스플러스(NEIS+) was updated on October 25, 2026 and Chalcack on October 24, 2026.

---

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