# RadHalo vs EMF Detector

The clearest difference is in-app purchases: RadHalo at none against EMF Detector's 3. RadHalo also leads on iOS requirement (11.0 vs 13.0). EMF Detector's advantage is update cadence (every 2 weeks vs every 48 months). 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. RadHalo asks for nothing beyond the download.

RadHalo ships an update every 48 months, EMF Detector every 2 weeks. The most recent releases landed on September 12, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | RadHalo | EMF Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (339 ratings)](https://appshunter.io/ios/app/emf-detector-radiation-reader/id6572300713/reviews)** |
| Number of ratings | — | **339** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 14 MB | 11 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thermo Fisher Scientific](https://appshunter.io/developer/407517076) | [新雨 李](https://appshunter.io/developer/1559932632) |

## What reviewers say

### RadHalo

[App page](https://appshunter.io/ios/app/radhalo/id1012511932)

**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 RadHalo free?

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

### Is EMF Detector free?

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

### Do RadHalo or EMF Detector have ads?

Neither RadHalo nor EMF Detector shows ads.

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

RadHalo ships an update every 48 months, and EMF Detector every 2 weeks. Most recently, RadHalo was updated on September 12, 2026 and EMF Detector on October 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.*