# EMF Radiation Detector Reader vs Security Blink Detector

The clearest difference is ratings volume: EMF Radiation Detector Reader at 4.7K against Security Blink Detector's 295. On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. EMF Radiation Detector Reader sells 2 in-app purchases, starting at $1.99 per 7 days and Security Blink Detector sells 6 in-app purchases, starting at $6.99 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 — 4.5 for EMF Radiation Detector Reader against 4.5 for Security Blink Detector. That said, the two scores are not equally well evidenced: EMF Radiation Detector Reader has 4.7K ratings behind it against 295, so its average is the more settled of the two. Written reviews are what separate them: 53% of EMF Radiation Detector Reader's written reviews are positive against 50% of Security Blink Detector's.

EMF Radiation Detector Reader ships an update every 7 months, Security Blink Detector every 8 months. The most recent releases landed on September 30, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | EMF Radiation Detector Reader | Security Blink Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (4.7K ratings)](https://appshunter.io/ios/app/emf-radiation-detector-reader/id1507914734/reviews) | [4.5 (295 ratings)](https://appshunter.io/ios/app/security-blink-detector/id6503432969/reviews) |
| Number of ratings | **4.7K** | 295 |
| Positive reviews | **52.8% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 7 months** | Every 8 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 20 MB | 39 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rounding Squares BV](https://appshunter.io/developer/976539506) | [Security App LTD](https://appshunter.io/developer/1655677065) |

## What reviewers say

### EMF Radiation Detector Reader

[App page](https://appshunter.io/ios/app/emf-radiation-detector-reader/id1507914734)

Detect electromagnetic fields (EMF) around you using your phone's sensors. Identify high-radiation zones in your home and workplace to better organize your environment and potentially improve well-being. Measure EMF emitted by various electronic devices and appliances.

**Highlights:** Detect EMF radiation, Measure EMF levels, Identify risk zones, Organize living space, Measure appliance emissions, No expensive equipment needed

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EMF Radiation Detector Premium Week | $1.99 | per 7 days |
| EMF Radiation Detector Premium Year | $9.99 | per year |

**What reviewers like**

- 👍 Works well around microwave
- 👍 Consistent results
- 👍 Useful tool for detecting EMF
- 👍 Legit EMF detection
- 👍 Helps find problem areas

**What reviewers complain about**

- 🐛 Ads cover reading numbers
- 🔍 Unclear how to interpret readings
- ⚠️ Questionable accuracy, only detects magnets
- 🔍 No explanation of safe/unsafe levels
- 🐛 Doesn't detect radio frequencies

**Reported bugs**

- Readings inconsistent or inaccurate
- Doesn't work as expected, only detects magnets

**Requested features**

- Add sound or vibration alerts for high EMF
- Provide more information on EMF levels and safety
- Improve layout to avoid ads covering readings


### Security Blink Detector

[App page](https://appshunter.io/ios/app/security-blink-detector/id6503432969)

This app helps you detect hidden electronic surveillance devices and cameras in your environment. It scans your Wi-Fi and Bluetooth networks, profiles devices, and offers tips for enhanced awareness. Unlock premium features with subscription plans.

**Highlights:** Wi-Fi network surveillance, Bluetooth device detection, Hidden camera scanning, Device profiling, Expert security tips, Ad-free premium mode

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Home Security Map Blink App rf | $6.99 | per 7 days |
| Scanner Detect Protection | $9.99 | per 7 days |
| Home Security Map Blink App rf | $14.99 | per month |
| Home Security Map Blink App rf | $15.99 | per month |
| Home Security Map Blink App rf | $83.99 | per year |
| #1 Hidden Camera Detector | $99.99 | per year |


## Frequently asked questions

### Is EMF Radiation Detector Reader free?

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

### Is Security Blink Detector free?

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

### Which has better reviews, EMF Radiation Detector Reader or Security Blink Detector?

EMF Radiation Detector Reader and Security Blink Detector are both rated 4.5 out of 5 on the App Store, from 4.7K and 295 ratings respectively.

### Do EMF Radiation Detector Reader or Security Blink Detector have ads?

Both EMF Radiation Detector Reader and Security Blink Detector show ads.

### Which is updated more often, EMF Radiation Detector Reader or Security Blink Detector?

EMF Radiation Detector Reader ships an update every 7 months, and Security Blink Detector every 8 months. Most recently, EMF Radiation Detector Reader was updated on September 30, 2026 and Security Blink Detector on September 28, 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.*