# YBM잉글루 vs TESL 모바일

The clearest difference is in-app purchases: YBM잉글루 at none against TESL 모바일's 10. YBM잉글루 also leads on review sentiment (40% vs 17%). TESL 모바일's advantage is update cadence (every 5 weeks vs every 4 months) and iOS requirement (13.0 vs 15.0). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. TESL 모바일 sells 10 one-off in-app purchases. YBM잉글루 asks for nothing beyond the download.

YBM잉글루 ships an update every 4 months, TESL 모바일 every 5 weeks. The most recent releases landed on September 18, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | YBM잉글루 | TESL 모바일 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **40.0% of reviews** | 16.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 30 MB | 5 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [YBM NET, Inc.](https://appshunter.io/developer/332188969) | [EMC교육평가원](https://appshunter.io/developer/1401171813) |

## What reviewers say

### YBM잉글루

[App page](https://appshunter.io/ios/app/ybm/id667229543)

This app provides parents and campus administrators with a dedicated mobile platform for managing student attendance, academic progress, and important communications. It offers real-time updates on test results, event notifications, and allows for direct messaging between parents and campuses.

**Highlights:** Track attendance and learning status, Receive push notifications for school communications, View report results from tests, Send push messages to parents, Real-time event and announcement updates, Add child profile pictures

**In-app purchases:** none


### TESL 모바일

[App page](https://appshunter.io/ios/app/tesl/id1380583602)

This app supports English learning for students of all ages through vocabulary study, interactive quizzes, and speed games. It offers detailed performance analysis, progress tracking, and opportunities to earn scholarships through various challenges and national competitions.

**Highlights:** Vocabulary learning by grade level, Pronunciation analysis, Quiz games for review, Speed games (OX, spelling, listening), English skill level testing, National word king challenges, School English subject tests, National mobile English competitions

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TESL 재도전권 | $1.99 | one-time |
| SAT 영어시험 1회 사용권 | $1.99 | one-time |
| CAT 영어시험 1회 사용권 | $1.99 | one-time |
| TESL 재도전권 #4 | $3.99 | one-time |
| TESL 재도전권 #5 | $4.99 | one-time |
| SAT 영어시험 3회 사용권 | $4.99 | one-time |
| CAT 영어시험 3회 사용권 | $5.99 | one-time |
| TESL 영어시험 10회 사용권 | $6.99 | one-time |
| SAT 영어시험 5회 사용권 | $6.99 | one-time |
| CAT 영어시험 5회 사용권 | $8.99 | one-time |


## Frequently asked questions

### Is YBM잉글루 free?

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

### Is TESL 모바일 free?

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

### Do YBM잉글루 or TESL 모바일 have ads?

Neither YBM잉글루 nor TESL 모바일 shows ads.

### Which is updated more often, YBM잉글루 or TESL 모바일?

YBM잉글루 ships an update every 4 months, and TESL 모바일 every 5 weeks. Most recently, YBM잉글루 was updated on September 18, 2026 and TESL 모바일 on June 1, 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.*