Test the signal blocking capabilities of Faraday bags and enclosures. This utility app verifies complete signal transmission blockage for Wi-Fi and cellular signals, generating a detailed report of the results.
Faraday Test by Merakai, LLC


54+ iOS apps curated and reviewed
If you already know Faraday Test, this is the deeper bench. 54+ faraday test apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.


Test the signal blocking capabilities of Faraday bags and enclosures. This utility app verifies complete signal transmission blockage for Wi-Fi and cellular signals, generating a detailed report of the results.









This utility app verifies the effectiveness of Faraday bags by detecting signal leaks from your device. It helps ensure your device is isolated from external communication networks for privacy, security, or forensic purposes.


This app allows users to measure and contribute to scientific research on Earth's magnetic field using their smartphone. It offers features for recording magnetic data during various activities, including flights, and provides tools for data visualization and analysis.


This app helps you protect your privacy by scanning your surroundings for hidden cameras and suspicious recording devices. It transforms your phone into a reliable detector, offering peace of mind in any unfamiliar environment.


This app transforms your iPhone into a precise scientific instrument for measuring, visualizing, and recording magnetic fields. Explore magnetic field vectors, magnitudes, and compass headings with real-time charts and digital readouts. Ideal for educational experiments, lab work, or curious exploration.


This app helps you find and analyze cellular network towers worldwide. It offers precise tower locations, signal strength monitoring, and network performance analysis to optimize your mobile connectivity. Ideal for troubleshooting, travel planning, and professional network assessment.


Detect electromagnetic radiation (EMF) emitted by everyday devices. This app uses your iPhone to measure nearby fields, alerting you to potentially harmful levels that could impact your health and environment.


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.


This application measures magnetic field strength, responding to both static and alternating fields. It helps users make a qualitative assessment of magnetic field exposure from various sources.


Visualize magnetic fields in 3D and measure their strength and direction. Explore objects, detect hidden lines, or estimate your position without GPS. Offers multiple display modes for magnetic and acceleration data.


This application uses your device's magnetic sensor to detect magnetic fields. It can help locate electrical wires in walls and iron pipes underground. Ghost hunters have also used it for paranormal investigations.




This app simulates detecting electromagnetic fields and electrosmog using your device's compass. It identifies ferromagnetic metals and can alert you to potential sources of radio-frequency EMF from common household appliances. While intended for entertainment, it records measurements with timestamps and offers a guide to radio-frequency guidelines.


Transform your device into a magnetic field detector. It measures magnetic field strength in real-time with a 3-axis display and provides visual alerts for metal and magnet detection. Explore the invisible magnetic world around you with a sleek, intuitive interface.


This utility app detects invisible electromagnetic fields using your device's magnetometer. It scans for alternating current waves from power lines and unshielded devices, employing a unique algorithm to isolate local magnetic flux.


Determine the north or south pole of a magnet facing your device. It also alerts you if a magnet is too close to your phone. An essential tool for anyone working with magnets.


Transform your iPhone into a professional metal detector. This app uses your device's magnetometer to detect ferrous metals with precision, ideal for finding lost objects or inspecting materials. It offers an intuitive interface with customizable sounds and themes.



