# CATQR Class Attendance Tracker vs Real Image Compressor

The clearest difference is price: CATQR Class Attendance Tracker at Free against Real Image Compressor's $2.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

CATQR Class Attendance Tracker is free to download; Real Image Compressor costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CATQR Class Attendance Tracker ships an update every 12 months, Real Image Compressor every 7 months. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | CATQR Class Attendance Tracker | Real Image Compressor |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.7 (15 ratings)](https://appshunter.io/ios/app/catqr-class-attendance-tracker/id1479679529/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 7 months** |
| Monetization | Free | — |
| Size | 43 MB | 1 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shinetech Europe Ltd.](https://appshunter.io/developer/912290008) | [Michael Welzel](https://appshunter.io/developer/1636424419) |

## What reviewers say

### CATQR Class Attendance Tracker

[App page](https://appshunter.io/ios/app/catqr-class-attendance-tracker/id1479679529)

This free utility digitizes class attendance using QR codes. Scan codes to record attendance, view history, and manage records. Organizers can track attendance in real-time and export data.

**Highlights:** QR code scanning for attendance, Scan history and calendar storage, Real-time attendance tracking for organizers, Export attendance data to Excel, Searchable scan history, Access internet links from QR codes

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

**In-app purchases:** none


### Real Image Compressor

[App page](https://appshunter.io/ios/app/real-image-compressor/id6760685783)

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

**In-app purchases:** none


## Frequently asked questions

### Is CATQR Class Attendance Tracker free?

CATQR Class Attendance Tracker is free to download, with no in-app purchases.

### Is Real Image Compressor free?

Real Image Compressor costs $2.99, with no in-app purchases.

### Do CATQR Class Attendance Tracker or Real Image Compressor have ads?

Neither CATQR Class Attendance Tracker nor Real Image Compressor shows ads.

### Which is updated more often, CATQR Class Attendance Tracker or Real Image Compressor?

CATQR Class Attendance Tracker ships an update every 12 months, and Real Image Compressor every 7 months. Most recently, CATQR Class Attendance Tracker was updated on October 13, 2026 and Real Image Compressor on October 11, 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.*