# EMF Radiation Detector Reader vs Cosmic Sort

The clearest difference is in-app purchases: Cosmic Sort at none against EMF Radiation Detector Reader's 2. Cosmic Sort also leads on update cadence (every 2 months vs every 7 months). On price, ads, device support and iOS requirement 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. Cosmic Sort asks for nothing beyond the download.

EMF Radiation Detector Reader ships an update every 7 months, Cosmic Sort every 2 months. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | EMF Radiation Detector Reader | Cosmic Sort |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4.7K ratings)](https://appshunter.io/ios/app/emf-radiation-detector-reader/id1507914734/reviews)** | — |
| Number of ratings | **4.7K** | — |
| Positive reviews | 53.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 290 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) | [环环 李](https://appshunter.io/developer/1870928840) |

## 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


### Cosmic Sort

[App page](https://appshunter.io/ios/app/cosmic-sort/id6759698550)

**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 Cosmic Sort free?

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

### Do EMF Radiation Detector Reader or Cosmic Sort have ads?

Both EMF Radiation Detector Reader and Cosmic Sort show ads.

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

EMF Radiation Detector Reader ships an update every 7 months, and Cosmic Sort every 2 months. Most recently, EMF Radiation Detector Reader was updated on October 15, 2026 and Cosmic Sort on October 11, 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.*