Teslameter. vs Radex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Teslameter.
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.
- Measures electromagnetic fields
- Displays X, Y, Z axis readings
- Calculates magnitude reading
- Detects magnetic object interference
- For entertainment purposes
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Teslameter lets you view current electromagnetic fields around you! To use, simply open Teslameter and bring your iPhone close to any ferromagnetic metal such as iron or steel, or any other magnetic object. Teslameter will measure the current magnetic fields on the X, Y, and Z axis in micro-teslas. In addition Teslameter displays a magnitude reading of (X^2+Y^2+Z^2). How exactly does it work? Since the iPhone 3GS/iPhone 4 includes a compass, Teslameter can measure the interference created by a ferromagnetic metal (or paranormal activity). Teslameter is NOT a true teslameter and shouldn't be used for anything but entertainment purposes.
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 in-app purchases: Radex at none against Teslameter.'s 1. Radex also leads on review sentiment (33% vs 0%) and update cadence (every 2 months vs every 12 months). Teslameter.'s advantage is iOS requirement (12.0 vs 15.0). On price, ratings volume, ads and device support 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. Teslameter. sells 1 one-off in-app purchase. Radex asks for nothing beyond the download.
Radex holds the better App Store score, 2.3 against 2.0. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 0% of Teslameter.'s written reviews are positive against 33% of Radex's.
Teslameter. ships an update every 12 months, Radex every 2 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.
| Parameter | Teslameter. | Radex |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (3 ratings) | 2.3 (3 ratings) — better |
| Positive reviews | 0.0% of reviews | 33.3% of reviews — better |
| Number of ratings | 3 | 3 |
| Update frequency | Every 12 months | Every 2 months — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 14 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | margaret kovatch | NETM S A S |
Customer experience
Teslameter.
Radex
In-app purchases
Teslameter.
- Remove Ads$1.99
Radex
No in-app purchases
