# 클래스연구소 vs 출결알림콩

The clearest difference is review sentiment: 출결알림콩 at 100% against 클래스연구소's 11%. 출결알림콩 also leads on ads (none vs shown). 클래스연구소's advantage is update cadence (daily vs fortnightly) and monetization model (ad-supported vs freemium). On price, in-app purchases and device support there is nothing between them.

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

클래스연구소 ships an update daily, 출결알림콩 fortnightly. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 클래스연구소 | 출결알림콩 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 11.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Fortnightly |
| Monetization | **Ad-supported** | Freemium |
| Size | 15 MB | 66 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jung Nam Choi](https://appshunter.io/developer/1659803857) | [Lineone, Inc](https://appshunter.io/developer/1389730476) |

## What reviewers say

### 클래스연구소

[App page](https://appshunter.io/ios/app/id1659803855)

Manage student attendance, payments, and receive important announcements from educational institutions. Stay updated on school news and individual notices for a streamlined communication experience.

**Highlights:** Attendance tracking, Payment information, Notices and announcements, Real-time notifications, Individual and group messages

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

**In-app purchases:** none


### 출결알림콩

[App page](https://appshunter.io/ios/app/id6478950142)

This app simplifies attendance management for educators. It allows instant setup without complex verification, sending notifications via familiar platforms like KakaoTalk and SMS. It also offers features to protect personal phone numbers and import student lists easily.

**Highlights:** Instant setup for teachers, Notifications via KakaoTalk and SMS, Import student lists from Excel/Google Sheets, Teacher's personal number protection, Choice between SMS and KakaoTalk alerts, Unlimited student and class registration

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

**In-app purchases:** none


## Frequently asked questions

### Is 클래스연구소 free?

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

### Is 출결알림콩 free?

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

### Do 클래스연구소 or 출결알림콩 have ads?

클래스연구소 shows ads; 출결알림콩 does not.

### Which is updated more often, 클래스연구소 or 출결알림콩?

클래스연구소 ships an update daily, and 출결알림콩 fortnightly. Most recently, 클래스연구소 was updated on October 10, 2026 and 출결알림콩 on October 24, 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.*