# YBM어학원 vs 공자와 제자들

The clearest difference is in-app purchases: YBM어학원 at none against 공자와 제자들's 1. YBM어학원 also leads on ads (none vs shown) and iOS requirement (15.0 vs 18.0). 공자와 제자들's advantage is update cadence (daily vs every 4 months). On price and device support there is nothing between them.

Both are free to download. 공자와 제자들 sells 1 one-off in-app purchase. YBM어학원 asks for nothing beyond the download.

YBM어학원 ships an update every 4 months, 공자와 제자들 daily. The most recent releases landed on November 7, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | YBM어학원 | 공자와 제자들 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.7 (3 ratings)](https://appshunter.io/ios/app/ybm/id1517756311/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 14.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Daily** |
| Monetization | Free | — |
| Size | 9 MB | 69 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YBM NET, Inc.](https://appshunter.io/developer/332188969) | [CHUNGKIL KIM](https://appshunter.io/developer/960187999) |

## What reviewers say

### YBM어학원

[App page](https://appshunter.io/ios/app/ybm/id1517756311)

Manage attendance, record temperature checks, and register for courses. Take English conversation level tests anytime, anywhere via mobile.

**Highlights:** Accurate attendance management, QR code temperature check recording, Course registration, Mobile English level testing, Student-initiated attendance check

**In-app purchases:** none


### 공자와 제자들

[App page](https://appshunter.io/ios/app/id6805121990)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 평생 이용권 | $4.99 | one-time |


## Frequently asked questions

### Is YBM어학원 free?

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

### Is 공자와 제자들 free?

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

### Do YBM어학원 or 공자와 제자들 have ads?

공자와 제자들 shows ads; YBM어학원 does not.

### Which is updated more often, YBM어학원 or 공자와 제자들?

YBM어학원 ships an update every 4 months, and 공자와 제자들 daily. Most recently, YBM어학원 was updated on November 7, 2026 and 공자와 제자들 on October 29, 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.*