# EMF Radiation Detector Reader vs SECA

The clearest difference is rating: EMF Radiation Detector Reader at 4.5 against SECA's 2.0. EMF Radiation Detector Reader also leads on review sentiment (53% vs 25%) and ratings volume (4.7K vs 4). SECA's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price and device support 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. SECA asks for nothing beyond the download.

EMF Radiation Detector Reader holds the better App Store score, 4.5 against 2.0. That said, the two scores are not equally well evidenced: EMF Radiation Detector Reader has 4.7K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 53% of EMF Radiation Detector Reader's written reviews are positive against 25% of SECA's.

EMF Radiation Detector Reader ships an update every 7 months, SECA monthly. The most recent releases landed on September 24, 2026 and August 24, 2026 respectively.

## The numbers

| Metric | EMF Radiation Detector Reader | SECA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4.7K ratings)](https://appshunter.io/ios/app/emf-radiation-detector-reader/id1507914734/reviews)** | [2.0 (4 ratings)](https://appshunter.io/ios/app/seca/id6502897162/reviews) |
| Number of ratings | **4.7K** | 4 |
| Positive reviews | **52.8% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 20 MB | 86 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Rounding Squares BV](https://appshunter.io/developer/976539506) | [上海铭控传感技术有限公司](https://appshunter.io/developer/1687248200) |

## 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


### SECA

[App page](https://appshunter.io/ios/app/seca/id6502897162)

This utility app allows users to switch sensor units and display units, export data to Excel, and load real-time data curves. It also enables reading data and modifying configuration parameters in real time.

**Highlights:** Switch sensor units, Export data to Excel, Switch display units, Load real-time data curves, Modify configuration parameters

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

**In-app purchases:** none


## Frequently asked questions

### Is EMF Radiation Detector Reader free?

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

### Is SECA free?

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

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

EMF Radiation Detector Reader is rated higher. EMF Radiation Detector Reader averages 4.5 out of 5 from 4.7K ratings, while SECA averages 2.0 from 4 ratings.

### Do EMF Radiation Detector Reader or SECA have ads?

EMF Radiation Detector Reader shows ads; SECA does not.

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

EMF Radiation Detector Reader ships an update every 7 months, and SECA monthly. Most recently, EMF Radiation Detector Reader was updated on September 24, 2026 and SECA on August 24, 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.*