# Cloud QR Scanner vs 클래스연구소

The clearest difference is review sentiment: Cloud QR Scanner at 100% against 클래스연구소's 11%. Cloud QR Scanner also leads on ads (none vs shown) and monetization model (free vs ad-supported). 클래스연구소's advantage is update cadence (daily vs every 3 weeks) and iOS requirement (11.0 vs 14.0). 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.

Cloud QR Scanner ships an update every 3 weeks, 클래스연구소 daily. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Cloud QR Scanner | 클래스연구소 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/cloud-qr-scanner/id1115325919/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | **100.0% of reviews** | 11.1% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | **Free** | Ad-supported |
| Size | 19 MB | 15 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Digitalt Hjarta AB](https://appshunter.io/developer/886129484) | [Jung Nam Choi](https://appshunter.io/developer/1659803857) |

## What reviewers say

### Cloud QR Scanner

[App page](https://appshunter.io/ios/app/cloud-qr-scanner/id1115325919)

This educational QR code scanner is designed for schools, offering a distraction-free scanning experience for videos, images, and text. It supports offline access to content and opens web pages in external browsers with your existing add-ons.

**Highlights:** Distraction-free video playback, Ad-free image and audio display, Text-to-speech functionality, Offline content access, Web page opening in external browsers, School-optimized interface

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Cloud QR Scanner free?

Cloud QR Scanner is free to download, with no in-app purchases.

### Is 클래스연구소 free?

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

### Do Cloud QR Scanner or 클래스연구소 have ads?

클래스연구소 shows ads; Cloud QR Scanner does not.

### Which is updated more often, Cloud QR Scanner or 클래스연구소?

Cloud QR Scanner ships an update every 3 weeks, and 클래스연구소 daily. Most recently, Cloud QR Scanner was updated on October 24, 2026 and 클래스연구소 on October 10, 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.*