# CATQR Class Attendance Tracker vs SkIN DP

The clearest difference is iOS requirement: SkIN DP at 14.2 against CATQR Class Attendance Tracker's 16.4. On price, update cadence, ads and in-app purchases there is nothing between them.

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

CATQR Class Attendance Tracker ships an update every 12 months, SkIN DP every 16 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CATQR Class Attendance Tracker | SkIN DP |
| --- | --- | --- |
| Price | Free | Free |
| 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 16 months |
| Monetization | Free | — |
| Size | 43 MB | 107 MB |
| Requires iOS | 16.4 | **14.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shinetech Europe Ltd.](https://appshunter.io/developer/912290008) | [The University of Manchester](https://appshunter.io/developer/418394509) |

## 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


### SkIN DP

[App page](https://appshunter.io/ios/app/skin-dp/id1604586049)

**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 SkIN DP free?

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

### Do CATQR Class Attendance Tracker or SkIN DP have ads?

Neither CATQR Class Attendance Tracker nor SkIN DP shows ads.

### Which is updated more often, CATQR Class Attendance Tracker or SkIN DP?

CATQR Class Attendance Tracker ships an update every 12 months, and SkIN DP every 16 months. Most recently, CATQR Class Attendance Tracker was updated on October 24, 2026 and SkIN DP on October 25, 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.*