# EMF Field Detector RF Scanner vs Blue Hound

The clearest difference is in-app purchases: Blue Hound at none against EMF Field Detector RF Scanner's 2. Blue Hound also leads on ads (none vs shown) and price ($1.99 vs $4.99). EMF Field Detector RF Scanner's advantage is review sentiment (84% vs 57%) and ratings volume (5.5K vs 914). On rating, update cadence and device support there is nothing between them.

EMF Field Detector RF Scanner costs $4.99 and Blue Hound $1.99 up front. EMF Field Detector RF Scanner sells 2 one-off in-app purchases. Blue Hound asks for nothing beyond the download.

Blue Hound holds the better App Store score, 4.6 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 914, so its average is the more settled of the two. Written reviews complicate that: 84% of EMF Field Detector RF Scanner's written reviews are positive against 57% of Blue Hound's, so the app with the better star average is not the one people write more warmly about.

EMF Field Detector RF Scanner ships an update every 3 weeks, Blue Hound every 5 weeks. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | EMF Field Detector RF Scanner | Blue Hound |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | [4.5 (5.5K ratings)](https://appshunter.io/ios/app/emf-field-detector-rf-scanner/id836603095/reviews) | **[4.6 (914 ratings)](https://appshunter.io/ios/app/blue-hound/id1067368392/reviews)** |
| Number of ratings | **5.5K** | 914 |
| Positive reviews | **83.6% of reviews** | 56.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | — | **#55** |
| Size | 56 MB | 6 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jorge Gregorio Martin Bello](https://appshunter.io/developer/567988393) | [GrangerFX](https://appshunter.io/developer/363698835) |

## 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


### Blue Hound

[App page](https://appshunter.io/ios/app/blue-hound/id1067368392)

**Currently charting:** #55 Top Paid · Utilities (US App Store)

Easily scan and locate your Bluetooth-enabled devices, including smartwatches, fitness trackers, and tags. Find lost items like keys or drones using signal strength, heat maps, or direction finders. The app identifies devices by name, maker, and model, and allows you to search the cloud for previously found items.

**Highlights:** Real-time Bluetooth scanning, Signal strength meter, Heat map and direction finder, Cloud search for past devices, Smart device identification, Power saver mode, Audio alerts

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

**In-app purchases:** none

**What reviewers like**

- 👍 Functional
- 🚀 Found lost items quickly
- 💡 Useful for finding lost/misplaced items
- 👍 Cheaper than buying a new device

**What reviewers complain about**

- 🐛 Key features not working (heatmap, compass)
- 🐛 Inaccurate distance/location information
- 🤔 Lack of instructions/tutorial
- 🤔 Limited device detection

**Reported bugs**

- Unable to detect nearby Bluetooth devices
- Inconsistent performance, app not working at times
- Inaccurate distance and location information

**Requested features**

- Ability to set device parameters and utilize scanned devices
- Device details like MAC address, identifiers
- Tutorial or onboarding for new users
- Option to block outside device connections for security


## 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 Blue Hound free?

Blue Hound costs $1.99, with no in-app purchases.

### Which has better reviews, EMF Field Detector RF Scanner or Blue Hound?

Blue Hound is rated higher. EMF Field Detector RF Scanner averages 4.5 out of 5 from 5.5K ratings, while Blue Hound averages 4.6 from 914 ratings.

### Do EMF Field Detector RF Scanner or Blue Hound have ads?

EMF Field Detector RF Scanner shows ads; Blue Hound does not.

### Which is updated more often, EMF Field Detector RF Scanner or Blue Hound?

EMF Field Detector RF Scanner ships an update every 3 weeks, and Blue Hound every 5 weeks. Most recently, EMF Field Detector RF Scanner was updated on October 31, 2026 and Blue Hound on October 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*