# EMF Detector vs RF Signal Detector

The clearest difference is ads: EMF Detector at none against RF Signal Detector's shown. EMF Detector also leads on review sentiment (25% vs 11%) and device support (3 vs 1). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. EMF Detector sells 2 in-app purchases, starting at $4.99 per month and RF Signal Detector sells 4 in-app purchases, starting at $8.99 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 — 4.4 for EMF Detector against 4.2 for RF Signal Detector. Both are backed by a comparable volume of ratings — 339 and 104 respectively. Written reviews are what separate them: 25% of EMF Detector's written reviews are positive against 11% of RF Signal Detector's.

EMF Detector ships an update every 2 weeks, RF Signal Detector monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | EMF Detector | RF Signal Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (339 ratings)](https://appshunter.io/ios/app/emf-detector-radiation-reader/id6572300713/reviews)** | [4.2 (104 ratings)](https://appshunter.io/ios/app/rf-signal-detector/id6757208480/reviews) |
| Number of ratings | **339** | 104 |
| Positive reviews | **25.0% of reviews** | 11.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | Freemium |
| Size | 11 MB | 60 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [新雨 李](https://appshunter.io/developer/1559932632) | [NEURASYNC](https://appshunter.io/developer/1639101560) |

## What reviewers say

### 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 |


### RF Signal Detector

[App page](https://appshunter.io/ios/app/rf-signal-detector/id6757208480)

This application offers real-time radio frequency signal detection and analysis. It monitors signal strength, analyzes frequency bands, and identifies interference sources. The tool provides historical data and network optimization insights for a better wireless experience.

**Highlights:** Real-time signal monitoring, Frequency band analysis (2.4 GHz & 5 GHz), Interference detection and categorization, Signal history tracking, Accurate dBm measurements, Network optimization insights

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RF Signal Detector Weekly Sub | $8.99 | per 7 days |
| RF Signal Detector Yearly Access | $35.99 | per year |
| RF Signal Detector Annual Access | $49.99 | per year |
| RF Signal Detector Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is EMF Detector free?

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

### Is RF Signal Detector free?

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

### Which has better reviews, EMF Detector or RF Signal Detector?

EMF Detector is rated higher. EMF Detector averages 4.4 out of 5 from 339 ratings, while RF Signal Detector averages 4.2 from 104 ratings.

### Do EMF Detector or RF Signal Detector have ads?

RF Signal Detector shows ads; EMF Detector does not.

### Which is updated more often, EMF Detector or RF Signal Detector?

EMF Detector ships an update every 2 weeks, and RF Signal Detector monthly. Most recently, EMF Detector was updated on October 24, 2026 and RF Signal Detector 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.*