# QR4all vs Eye blink detection

The clearest difference is in-app purchases: Eye blink detection at none against QR4all's 1. Eye blink detection also leads on update cadence (every 2 weeks vs every 2 months). QR4all's advantage is ads (none vs shown) and device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. QR4all sells 1 one-off in-app purchase. Eye blink detection asks for nothing beyond the download.

QR4all ships an update every 2 months, Eye blink detection every 2 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | QR4all | Eye blink detection |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/eye-blink-detection/id6502569148/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Ad-supported |
| Size | 15 MB | 35 MB |
| Requires iOS | **16.0** | 17.7.2 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | +4 | 4+ |
| Developer | [Tobias Huppertz](https://appshunter.io/developer/1548106214) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### QR4all

[App page](https://appshunter.io/ios/app/qr4all-qr-code-designer/id1605605135)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QR4all Pro | $4.99 | one-time |


### Eye blink detection

[App page](https://appshunter.io/ios/app/eye-blink-detection/id6502569148)

This utility app monitors and displays your blinking activity in real-time. It shows your current blink status and counts the total number of blinks detected on the screen.

**Highlights:** Real-time blink detection, Displays blink status, Counts blinks, On-screen display

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QR4all free?

QR4all is free to download, with in-app purchases available.

### Is Eye blink detection free?

Eye blink detection is free to download, with no in-app purchases.

### Do QR4all or Eye blink detection have ads?

Eye blink detection shows ads; QR4all does not.

### Which is updated more often, QR4all or Eye blink detection?

QR4all ships an update every 2 months, and Eye blink detection every 2 weeks. Most recently, QR4all was updated on November 7, 2026 and Eye blink detection on November 4, 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.*