magnetoboy vs Radex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
magnetoboy
This utility app uses your device's magnetometer to measure and visualize magnetic fields. Detect ferromagnetic materials, observe field changes, and even use it for locating hidden objects by attaching a magnet. The app provides visual graphs and optional vibration feedback for strong fields.
- Measure magnetic field strength
- Visualize magnetic fields with graphs
- Detect ferromagnetic materials
- Vibration feedback for strong fields
- Useful for locating hidden objects
- Observe Earth's magnetic field
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Use your device's magnetometer, and read out the magnetic field (micro teslas). You can observe and examine the magnetic fields around you. You will find that certain materials change the magnetic field. Such as Iron, magnets, nails, speakers, some metals, electronics, the earth, and more. This may be used to find things, that are ferromagnetic. Change the feedback level to get a vibration when some strong magnetic field is nearby. Observe the graph to visualize the fields around you. Can be used in construction: by attaching a magnet to something behind a wall and use the app to locate the target. The magnetometer, is usually used in navigation to detect the magnetic fields of the earth. The phone must not be in mute for the sound to work.
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: magnetoboy at 100% against Radex's 33%. magnetoboy also leads on rating (4.8 vs 2.3) and ads (none vs shown). On price, ratings volume, update cadence and in-app purchases 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.
magnetoboy holds the better App Store score, 4.8 against 2.3. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews point the same way: 100% of magnetoboy's written reviews are positive against 33% of Radex's.
magnetoboy ships an update monthly, Radex every 2 months. The most recent releases landed on September 27, 2026 and October 14, 2026 respectively.
| Parameter | magnetoboy | Radex |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) — better | 2.3 (3 ratings) |
| Positive reviews | 100.0% of reviews — better | 33.3% of reviews |
| Number of ratings | 5 — better | 3 |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 23 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Smart Bros Ltd co | NETM S A S |
Customer experience
magnetoboy
Radex
In-app purchases
magnetoboy
No in-app purchases
Radex
No in-app purchases
Questions
Is magnetoboy free?
Is Radex free?
Which has better reviews, magnetoboy or Radex?
Do magnetoboy or Radex have ads?
Which is updated more often, magnetoboy or Radex?
Other comparisons
