# EMF Field Detector RF Scanner vs Teslameter.

The clearest difference is review sentiment: EMF Field Detector RF Scanner at 84% against Teslameter.'s 0%. EMF Field Detector RF Scanner also leads on rating (4.5 vs 2.0) and update cadence (every 3 weeks vs every 12 months). Teslameter.'s advantage is price (Free vs $4.99) and iOS requirement (12.0 vs 15.6). On ads, in-app purchases, monetization model and device support there is nothing between them.

Teslameter. is free to download; EMF Field Detector RF Scanner costs $4.99 up front. EMF Field Detector RF Scanner sells 2 one-off in-app purchases and Teslameter. sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

EMF Field Detector RF Scanner holds the better App Store score, 4.5 against 2.0. That said, the two scores are not equally well evidenced: EMF Field Detector RF Scanner has 5.5K ratings behind it against 3, 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 0% of Teslameter.'s.

EMF Field Detector RF Scanner ships an update every 3 weeks, Teslameter. every 12 months. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | EMF Field Detector RF Scanner | Teslameter. |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.5 (5.5K ratings)](https://appshunter.io/ios/app/emf-field-detector-rf-scanner/id836603095/reviews)** | [2.0 (3 ratings)](https://appshunter.io/ios/app/teslameter/id976926346/reviews) |
| Number of ratings | **5.5K** | 3 |
| Positive reviews | **83.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 12 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 56 MB | 14 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jorge Gregorio Martin Bello](https://appshunter.io/developer/567988393) | [margaret kovatch](https://appshunter.io/developer/1039651981) |

## 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


### Teslameter.

[App page](https://appshunter.io/ios/app/teslameter/id976926346)

This utility app measures electromagnetic fields around you using your device's compass. It displays readings on X, Y, and Z axes in micro-teslas, along with a magnitude reading. Primarily for entertainment, it detects interference from magnetic objects or potential paranormal activity.

**Highlights:** Measures electromagnetic fields, Displays X, Y, Z axis readings, Calculates magnitude reading, Detects magnetic object interference, For entertainment purposes

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## 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 Teslameter. free?

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

### Which has better reviews, EMF Field Detector RF Scanner or Teslameter.?

EMF Field Detector RF Scanner is rated higher. EMF Field Detector RF Scanner averages 4.5 out of 5 from 5.5K ratings, while Teslameter. averages 2.0 from 3 ratings.

### Do EMF Field Detector RF Scanner or Teslameter. have ads?

Both EMF Field Detector RF Scanner and Teslameter. show ads.

### Which is updated more often, EMF Field Detector RF Scanner or Teslameter.?

EMF Field Detector RF Scanner ships an update every 3 weeks, and Teslameter. every 12 months. Most recently, EMF Field Detector RF Scanner was updated on October 17, 2026 and Teslameter. 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.*