Metal Detector・EMF Reader vs Metal Detector S
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Metal Detector・EMF Reader
Transform your iPhone into a versatile tool for detecting metal objects, locating wall studs, and measuring EMF levels. Utilize the device's built-in magnetometer for real-time insights into magnetic fields and signal strength, perfect for various DIY and utility tasks.
- Detect nearby metal objects
- Find wall studs, screws, nails, pipes
- Real-time magnetic field readings
- Live EMF meter and graph visualization
- Signal confidence indicator
- Axis-based directional detection
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Turn your iPhone into a powerful Metal Detector, Stud Finder & EMF Reader using the built-in magnetometer sensor. Metal Detector helps you locate nearby metal objects, detect magnetic fields, analyze EMF levels, and visualize live magnetometer readings directly from your device. Whether you’re searching for hidden metal, locating wall studs, checking electronics for EMF activity, or exploring magnetic fields around you, this app gives you real-time precision and easy-to-read insights. Perfect for DIY projects, construction work, home improvement, electronics testing, hobby exploration, and everyday utility use. FEATURES • Detect nearby metal objects using your iPhone’s magnetometer • Find wall studs, screws, nails, pipes, and hidden metallic objects • Real-time magnetic field readings in microtesla (µT) • Live EMF meter and magnetometer graph visualization • Signal confidence indicator for stronger detections • Axis-based directional detection system • Smooth real-time graphing of magnetic field activity • Minimal, clean, and professional interface • Fast and lightweight performance • Works instantly with supported iPhones HOW IT WORKS The app uses your iPhone’s built-in magnetometer sensor to measure magnetic field strength. When metal or magnetic objects are nearby, the magnetic field changes and the app displays the variation in real time. You can use Metal Detector to: • Locate metal studs in walls • Find hidden screws or nails • Detect magnetic interference • Measure EMF activity around electronics • Explore magnets and magnetic fields • Scan objects for metallic presence GREAT FOR • DIY & home improvement • Construction & renovation • Electricians & technicians • Hobbyists & explorers • Educational science experiments • Everyday utility detection IMPORTANT NOTES • Accuracy depends on your iPhone’s magnetometer sensor • Best results occur with ferromagnetic metals like iron and steel • Does not work for non ferrous metal like Aluminum, gold, silver • Thick walls or heavy interference can affect readings • Remove magnetic phone accessories for improved accuracy Download Metal Detector today and transform your iPhone into a smart magnetic field scanner, EMF reader, and stud finder tool. Terms of service - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Metal Detector S
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features include: Real-Time Magnetic Field Detection: Displays magnetic field strength (in µT) with an intuitive level indicator. Vibration Alerts: Triggers vibration when magnetic field strength exceeds the threshold (device support required). Clean Interface: Modern design with start/stop detection and vibration control buttons for intuitive operation. Features Efficient Detection: Processes magnetometer data in real-time without storing or transmitting it, ensuring privacy. Customizable Experience: Toggle vibration on/off to suit different scenarios. Notes Detection Limitation: Only detects magnetic metals (e.g., iron, nickel); non-magnetic metals (e.g., aluminum, copper) are not detectable. Device Compatibility: Some devices may not support magnetometer or vibration functions. Please check your device’s compatibility. Download Metal Detector S now and experience convenient metal detection!
Screenshots
Verdict
The clearest difference is in-app purchases: Metal Detector S at none against Metal Detector・EMF Reader's 1. Metal Detector S also leads on iOS requirement (13.0 vs 16.6). Metal Detector・EMF Reader's advantage is ads (none vs shown). On price, update cadence 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. Metal Detector・EMF Reader sells 1 one-off in-app purchase. Metal Detector S asks for nothing beyond the download.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 25, 2026 and October 9, 2026 respectively.
| Parameter | Metal Detector・EMF Reader | Metal Detector S |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Weekly | Weekly |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Yash Mandhyan | Yangming Mai |
In-app purchases
Metal Detector・EMF Reader
- Lifetime Access$2.99
Metal Detector S
No in-app purchases
Questions
Is Metal Detector・EMF Reader free?
Is Metal Detector S free?
Do Metal Detector・EMF Reader or Metal Detector S have ads?
Which is updated more often, Metal Detector・EMF Reader or Metal Detector S?
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