EMF Hunter vs Radex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EMF Hunter
Transform your phone into an electromagnetic field detector. It uses your device's internal compass to measure magnetic and electric fluctuations, displaying readings through meters, graphs, and particle effects. Ideal for educational or entertainment purposes.
- Detects magnetic field strength in three dimensions
- Easy-to-read meter with LED indicators
- Multiple graph views (line, bar, polar, pie)
- Particle mode visualizes magnetic force
- Start and pause detection functionality
- Displays force in microteslas
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------------- EMF Hunter ------------- This app is intended for entertainment purposes only. This app supports devices with an internal compass. This includes iPhone 3GS and newer iPhone devices. ------------- Description ------------- User your phone as an EMF (electromagnetic field) detector. This app uses the power of your phones internal compass to detect magnetic and electric fluctuations in the environment around you. This is perfect for people looking to detect magnetic fields: teachers, students, technophiles, and even Ghost hunters! This app is not intended to be a scientific instrument, and it's readings are subject to external conditions and the accuracy of the device's internal compass. ------------- Features ------------- * Detects the strength of magnetic fields in all three dimensions * Easy to read meter lets you gauge with a simple look the strength of fields in different directions * Light up LED icons display showing field strength, the more LED icons that light up, the more force there is * Graph view shows the changing values of the field from all three dimensions * Line Graph * Bar Graph * Polar Graph * Pie Graph * Particle Mode - the more magnetic force the more particles * Ability to start and pause detection * Magnetic force is calculated in microteslas
Radex
This application measures 5G EMF radiation using your device's sensors and magnetometer. It offers an easy-to-use interface with a color-coded system for readings and supports Apple Watch integration.
- 5G EMF radiation detection
- On-device sensor utilization
- Magnetometer for accuracy
- Color-coded readings
- Apple Watch support
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Radex is a mobile app which detects the 5G EMF Radiation on the device and around the enviroment, the software is calibrated with professional equipment and using on device sensors and magnetometer to measure accuracy. It is free and easy to use with a color code for reading. This app comes with support for Apple Watch.
Screenshots
Verdict
The clearest difference is review sentiment: EMF Hunter at 100% against Radex's 33%. EMF Hunter also leads on rating (4.0 vs 2.3) and ratings volume (10 vs 3). Radex's advantage is update cadence (every 2 months vs every 22 months) and device support (4 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
EMF Hunter holds the better App Store score, 4.0 against 2.3. Both are backed by a comparable volume of ratings — 10 and 3 respectively. Written reviews point the same way: 100% of EMF Hunter's written reviews are positive against 33% of Radex's.
EMF Hunter ships an update every 22 months, Radex every 2 months. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.
| Parameter | EMF Hunter | Radex |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (10 ratings) — better | 2.3 (3 ratings) |
| Positive reviews | 100.0% of reviews — better | 33.3% of reviews |
| Number of ratings | 10 — better | 3 |
| Update frequency | Every 22 months | Every 2 months — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 6 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Derek Hoffmeister | NETM S A S |
Customer experience
EMF Hunter
Radex
In-app purchases
EMF Hunter
No in-app purchases
Radex
No in-app purchases
