# 출결선생 체크앱 vs 캐츠업 모바일 OMR

The clearest difference is review sentiment: 캐츠업 모바일 OMR at 100% against 출결선생 체크앱's 50%. 캐츠업 모바일 OMR also leads on iOS requirement (14.0 vs 16.0). 출결선생 체크앱's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

출결선생 체크앱 ships an update every 3 weeks, 캐츠업 모바일 OMR every 3 months. The most recent releases landed on August 19, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 출결선생 체크앱 | 캐츠업 모바일 OMR |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 17 MB | 7 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PAYMINT Inc.](https://appshunter.io/developer/1540726356) | [(주)단비교육 (Danbi Education Co. ,Ltd.)](https://appshunter.io/developer/1294082775) |

## What reviewers say

### 출결선생 체크앱

[App page](https://appshunter.io/ios/app/id6462012501)

This app helps educational institutions manage student attendance. Teachers or students can check attendance via a 4-digit code, and guardians receive automatic notifications via KakaoTalk. It provides accurate arrival and departure times for effective monitoring.

**Highlights:** Student self-check-in with 4-digit code, Accurate arrival and departure time tracking, Automatic attendance notifications to guardians, KakaoTalk alert message integration, Supports iPad devices

**In-app purchases:** none


### 캐츠업 모바일 OMR

[App page](https://appshunter.io/ios/app/omr/id6476922565)

This app simplifies homework and assignments given by your academy teachers. Automatically grade quizzes, receive personalized feedback on incorrect answers, and track your progress to improve your skills and grades.

**Highlights:** Automated grading, Personalized feedback, Assignment submission, Progress tracking, Skill improvement

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

**In-app purchases:** none


## Frequently asked questions

### Is 출결선생 체크앱 free?

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

### Is 캐츠업 모바일 OMR free?

캐츠업 모바일 OMR is free to download, with no in-app purchases.

### Do 출결선생 체크앱 or 캐츠업 모바일 OMR have ads?

Neither 출결선생 체크앱 nor 캐츠업 모바일 OMR shows ads.

### Which is updated more often, 출결선생 체크앱 or 캐츠업 모바일 OMR?

출결선생 체크앱 ships an update every 3 weeks, and 캐츠업 모바일 OMR every 3 months. Most recently, 출결선생 체크앱 was updated on August 19, 2026 and 캐츠업 모바일 OMR on September 22, 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.*