# Particle Detector vs EMF Detector

The clearest difference is review sentiment: Particle Detector at 100% against EMF Detector's 25%. Particle Detector also leads on in-app purchases (none vs 3) and iOS requirement (7.0 vs 13.0). EMF Detector's advantage is ratings volume (319 vs 1) and rating (4.3 vs 4.0). On price, ads and device support there is nothing between them.

Both are free to download. EMF Detector sells 2 in-app purchases, starting at $4.99 per month. Particle Detector asks for nothing beyond the download.

EMF Detector holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: EMF Detector has 319 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of Particle Detector's written reviews are positive against 25% of EMF Detector's, so the app with the better star average is not the one people write more warmly about.

Particle Detector ships an update every 2 months, EMF Detector every 2 weeks. The most recent releases landed on June 7, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Particle Detector | EMF Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/particle-detector/id724226138/reviews) | **[4.3 (319 ratings)](https://appshunter.io/ios/app/emf-detector-radiation-reader/id6572300713/reviews)** |
| Number of ratings | 1 | **319** |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 11 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KS Technologies](https://appshunter.io/developer/423792118) | [新雨 李](https://appshunter.io/developer/1559932632) |

## What reviewers say

### Particle Detector

[App page](https://appshunter.io/ios/app/particle-detector/id724226138)

This utility app transforms your iOS device into a wireless scanner for iBeacon™ and Eddystone beacons. It displays detailed information like UUID, Major ID, signal strength, and battery life for discovered beacons. The app can log beacon data even when running in the background.

**Highlights:** Wireless Bluetooth Low Energy scanner, Detects iBeacon™ and Eddystone beacons, Displays Major ID, Minor ID, and Signal Strength, Shows Eddystone beacon URL and battery life, Supports UUID filters for quick discovery, Background logging of beacon data

**Features:** macOS Compatibility

**In-app purchases:** none


### EMF Detector

[App page](https://appshunter.io/ios/app/emf-detector-radiation-reader/id6572300713)

Transform your iPhone into an EMF detector to monitor electromagnetic fields. Identify radiation levels in various environments to assess safety at home, work, or in public spaces. Gain insights to make informed decisions about your surroundings.

**Highlights:** EMF monitoring, Electromagnetic field detection, Radiation level measurement, Environmental safety assessment, Real-time EMF readings

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| unlimited features | $4.99 | per month |
| unlimited features | $14.99 | one-time |


## Frequently asked questions

### Is Particle Detector free?

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

### Is EMF Detector free?

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

### Which has better reviews, Particle Detector or EMF Detector?

EMF Detector is rated higher. Particle Detector averages 4.0 out of 5 from 1 ratings, while EMF Detector averages 4.3 from 319 ratings.

### Do Particle Detector or EMF Detector have ads?

Neither Particle Detector nor EMF Detector shows ads.

### Which is updated more often, Particle Detector or EMF Detector?

Particle Detector ships an update every 2 months, and EMF Detector every 2 weeks. Most recently, Particle Detector was updated on June 7, 2026 and EMF Detector on September 21, 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.*