# EMF Field Detector RF Scanner vs Harmonic Wave Equation Calc

The clearest difference is rating: Harmonic Wave Equation Calc at 5.0 against EMF Field Detector RF Scanner's 4.5. Harmonic Wave Equation Calc also leads on in-app purchases (none vs 2) and ads (none vs shown). EMF Field Detector RF Scanner's advantage is update cadence (every 3 weeks vs every 31 months) and ratings volume (5.5K vs 1). On device support there is nothing between them.

EMF Field Detector RF Scanner costs $4.99 and Harmonic Wave Equation Calc $2.99 up front. EMF Field Detector RF Scanner sells 2 one-off in-app purchases. Harmonic Wave Equation Calc asks for nothing beyond the download.

Harmonic Wave Equation Calc holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: EMF Field Detector RF Scanner has 5.5K ratings behind it against 1, so its average is the more settled of the two.

EMF Field Detector RF Scanner ships an update every 3 weeks, Harmonic Wave Equation Calc every 31 months. The most recent releases landed on November 12, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | EMF Field Detector RF Scanner | Harmonic Wave Equation Calc |
| --- | --- | --- |
| Price | $4.99 | **$2.99** |
| Rating | [4.5 (5.5K ratings)](https://appshunter.io/ios/app/emf-field-detector-rf-scanner/id836603095/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/harmonic-wave-equation-calc/id1412323951/reviews)** |
| Number of ratings | **5.5K** | 1 |
| Positive reviews | 83.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 31 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 56 MB | 1 MB |
| Requires iOS | 15.6 | **13** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jorge Gregorio Martin Bello](https://appshunter.io/developer/567988393) | [Nitrio](https://appshunter.io/developer/321121189) |

## 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


### Harmonic Wave Equation Calc

[App page](https://appshunter.io/ios/app/harmonic-wave-equation-calc/id1412323951)

This physics and math calculator quickly determines wave properties like displacement, velocity, and amplitude. It provides instant calculations with copyable results and includes reference formulas. Optimized for everyday use, it supports high precision and various units.

**Highlights:** Instant wave calculations, Copyable results, Included reference formulas, Supports 16 decimal places, Multiple unit support, Ad-free and private

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

**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 Harmonic Wave Equation Calc free?

Harmonic Wave Equation Calc costs $2.99, with no in-app purchases.

### Which has better reviews, EMF Field Detector RF Scanner or Harmonic Wave Equation Calc?

Harmonic Wave Equation Calc is rated higher. EMF Field Detector RF Scanner averages 4.5 out of 5 from 5.5K ratings, while Harmonic Wave Equation Calc averages 5.0 from 1 ratings.

### Do EMF Field Detector RF Scanner or Harmonic Wave Equation Calc have ads?

EMF Field Detector RF Scanner shows ads; Harmonic Wave Equation Calc does not.

### Which is updated more often, EMF Field Detector RF Scanner or Harmonic Wave Equation Calc?

EMF Field Detector RF Scanner ships an update every 3 weeks, and Harmonic Wave Equation Calc every 31 months. Most recently, EMF Field Detector RF Scanner was updated on November 12, 2026 and Harmonic Wave Equation Calc on November 2, 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.*