# EMF Field Detector RF Scanner vs Low Frequency Detector

The clearest difference is rating: EMF Field Detector RF Scanner at 4.5 against Low Frequency Detector's 2.8. EMF Field Detector RF Scanner also leads on review sentiment (84% vs 50%) and update cadence (every 3 weeks vs every 9 months). Low Frequency Detector's advantage is in-app purchases (none vs 2) and ads (none vs shown).

EMF Field Detector RF Scanner costs $4.99 and Low Frequency Detector $9.99 up front. EMF Field Detector RF Scanner sells 2 one-off in-app purchases. Low Frequency Detector asks for nothing beyond the download.

EMF Field Detector RF Scanner holds the better App Store score, 4.5 against 2.8. That said, the two scores are not equally well evidenced: EMF Field Detector RF Scanner has 5.5K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 84% of EMF Field Detector RF Scanner's written reviews are positive against 50% of Low Frequency Detector's.

EMF Field Detector RF Scanner ships an update every 3 weeks, Low Frequency Detector every 9 months. The most recent releases landed on October 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | EMF Field Detector RF Scanner | Low Frequency Detector |
| --- | --- | --- |
| Price | **$4.99** | $9.99 |
| Rating | **[4.5 (5.5K ratings)](https://appshunter.io/ios/app/emf-field-detector-rf-scanner/id836603095/reviews)** | [2.8 (6 ratings)](https://appshunter.io/ios/app/low-frequency-detector/id1196584147/reviews) |
| Number of ratings | **5.5K** | 6 |
| Positive reviews | **83.6% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 9 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 56 MB | 1 MB |
| Requires iOS | **15.6** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jorge Gregorio Martin Bello](https://appshunter.io/developer/567988393) | [TOON,LLC](https://appshunter.io/developer/633948723) |

## What reviewers say

### EMF Field Detector RF Scanner

[App page](https://appshunter.io/ios/app/emf-field-detector-rf-scanner/id836603095)

Detect electromagnetic fields (EMF) using your device's sensors. Get alerted to high magnetic fields and potential radiation sources in your home. Useful for identifying hidden emitters and understanding your environment.

**Highlights:** Detects electromagnetic fields (EMF), Warns of high magnetic fields with beeps, Measures magnetic force on three axes, Records readings with time and date stamps, Stores up to 100 records, Sends measurements via email

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Pack | $4.99 | one-time |
| Special Offer | $4.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Accurate readings
- 💡 Useful for detecting EMF
- 🔍 Helps identify problem areas
- 📊 Provides clear data and insights

**What reviewers complain about**

- 🐛 Occasional glitches or inconsistent readings
- 🔋 Concerns about phone's own EMF emissions
- 💰 Premium version required for full functionality

**Reported bugs**

- App freezes or stops working after updates
- Readings not always accurate or reliable

**Requested features**

- Ability to export data
- More detailed explanations and guidance
- Compatibility with other EMF measurement devices


### Low Frequency Detector

[App page](https://appshunter.io/ios/app/low-frequency-detector/id1196584147)

This tool measures and analyzes low-frequency sounds that are difficult for the human ear to detect. It helps identify potential noise pollution from sources like construction or factories, providing detailed reports on frequency components and sound levels.

**Highlights:** Low-frequency power level measurement (<100Hz), Audible band power level measurement (Leq), 1/3 octave band analysis (OCT), FFT analysis (FFT), Time course graph (TIME), Measurement report generation, Calibration function

**In-app purchases:** none


## Frequently asked questions

### Is EMF Field Detector RF Scanner free?

EMF Field Detector RF Scanner costs $4.99, and also offers in-app purchases.

### Is Low Frequency Detector free?

Low Frequency Detector costs $9.99, with no in-app purchases.

### Which has better reviews, EMF Field Detector RF Scanner or Low Frequency Detector?

EMF Field Detector RF Scanner is rated higher. EMF Field Detector RF Scanner averages 4.5 out of 5 from 5.5K ratings, while Low Frequency Detector averages 2.8 from 6 ratings.

### Do EMF Field Detector RF Scanner or Low Frequency Detector have ads?

EMF Field Detector RF Scanner shows ads; Low Frequency Detector does not.

### Which is updated more often, EMF Field Detector RF Scanner or Low Frequency Detector?

EMF Field Detector RF Scanner ships an update every 3 weeks, and Low Frequency Detector every 9 months. Most recently, EMF Field Detector RF Scanner was updated on October 20, 2026 and Low Frequency Detector on October 6, 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.*