# QR Code Reader－Barcode Scanner vs EMF Detector

QR Code Reader－Barcode Scanner and EMF Detector both sit at 4.7 stars, but that hides the real split: 100% of QR Code Reader－Barcode Scanner's written reviews are positive against 60% of EMF Detector's. QR Code Reader－Barcode Scanner also leads on iOS requirement (15.1 vs 17.0). EMF Detector's advantage is ratings volume (108 vs 32). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. QR Code Reader－Barcode Scanner sells 5 in-app purchases, starting at $2.99 per 7 days and EMF Detector sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for QR Code Reader－Barcode Scanner against 4.6 for EMF Detector. Both are backed by a comparable volume of ratings — 32 and 108 respectively. Written reviews are what separate them: 100% of QR Code Reader－Barcode Scanner's written reviews are positive against 60% of EMF Detector's.

QR Code Reader－Barcode Scanner ships an update every 6 weeks, EMF Detector every 2 months. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | QR Code Reader－Barcode Scanner | EMF Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (32 ratings)](https://appshunter.io/ios/app/qr-code-readerbarcode-scanner/id6504292258/reviews)** | [4.6 (108 ratings)](https://appshunter.io/ios/app/emf-detector-gauss-meter/id6747639722/reviews) |
| Number of ratings | 32 | **108** |
| Positive reviews | **100.0% of reviews** | 60.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 56 MB | 191 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Erwin Belen](https://appshunter.io/developer/1751746595) | [Neuralful Ai ltd](https://appshunter.io/developer/1707749156) |

## What reviewers say

### QR Code Reader－Barcode Scanner

[App page](https://appshunter.io/ios/app/qr-code-readerbarcode-scanner/id6504292258)

This app quickly scans and generates QR codes and barcodes. It can also scan product details, business cards, and connect to WiFi networks. Store and access your scan history easily.

**Highlights:** QR Code Reader and Scanner, Barcode Scanner, QR Code Generator, Scan Product Codes, Scan Business Cards, QR Scanner with History, Generate 2FA tokens

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $2.99 | per 7 days |
| Monthly Pro | $9.99 | per month |
| Yearly 50% 0ff | $24.99 | per year |
| Yearly Pro | $49.99 | per year |
| Lifetime Pro Access | $49.99 | one-time |


### EMF Detector

[App page](https://appshunter.io/ios/app/emf-detector-gauss-meter/id6747639722)

Transform your iPhone into an EMF detector and gauss meter. Measure magnetic fields in real-time, with options for ghost hunting, metal detection, and stud finding. Export your session logs for detailed analysis.

**Highlights:** Live EMF detection with peak hold, Switchable units (µT, mG, Gauss), Zero/calibrate function, Ghost hunt mode with audio/haptics, Metal and stud finder, Session logging with CSV/PDF export

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| week | $3.99 | per 7 days |
| yearlypro | $14.99 | per year |
| emfmeter | $29.99 | one-time |


## Frequently asked questions

### Is QR Code Reader－Barcode Scanner free?

QR Code Reader－Barcode Scanner is free to download, with in-app purchases available.

### Is EMF Detector free?

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

### Which has better reviews, QR Code Reader－Barcode Scanner or EMF Detector?

QR Code Reader－Barcode Scanner is rated higher. QR Code Reader－Barcode Scanner averages 4.7 out of 5 from 32 ratings, while EMF Detector averages 4.6 from 108 ratings.

### Do QR Code Reader－Barcode Scanner or EMF Detector have ads?

Both QR Code Reader－Barcode Scanner and EMF Detector show ads.

### Which is updated more often, QR Code Reader－Barcode Scanner or EMF Detector?

QR Code Reader－Barcode Scanner ships an update every 6 weeks, and EMF Detector every 2 months. Most recently, QR Code Reader－Barcode Scanner was updated on November 4, 2026 and EMF Detector on November 5, 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.*