Comparison

Metal Detector vs Metal Detector・EMF Reader

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Metal Detector

This utility app uses your iPhone's sensors to detect metals, studs, and electromagnetic fields. It can also identify lens reflections and analyze WiFi networks for potential surveillance devices, offering a comprehensive scanning tool for security and home improvement.

Highlights
  • Metal and stud detection
  • Lens reflection scanner
  • EMF meter
  • WiFi analyzer
  • Easy calibration
  • Lightweight and portable
Features
Read full description

Metal Detector: Stud Finder turns your iPhone's built-in sensors into a pocket toolkit for finding hidden metal, magnetic fields, spy cameras and unknown devices. SCAN FOR METAL • Live magnetic field reading in µT with a clear gauge and a real-time graph • Sensitivity presets and one-tap calibration • Sound and haptic feedback that gets stronger as you get closer • Save every scan to your history HIDDEN CAMERA DETECTOR • Sweep a room with your camera to spot lens reflections • On-device detection, haptic alerts and a live HUD • Step-by-step "What should I do?" guide if something is found WI-FI & NETWORK CHECK • See the devices connected to your network • Spot unknown or suspicious devices BLUETOOTH SCANNER • Find nearby Bluetooth devices and see their signal strength ROOM SWEEP • A guided checklist that combines the camera, Wi-Fi and Bluetooth checks into one report STUD FINDER & WIRE LOCATOR • Find metal studs, nails, screws and wiring behind walls using the magnetic field • Move the phone slowly along the wall and watch the graph SIGNAL FINDER • Follow a signal with a direction and strength meter LEVEL & COMPASS • Level and compass in one screen EMF / ELECTROMAGNETIC DETECTOR • Measure the electromagnetic field around you with a live chart, calibration and reset MAIL SECURITY CHECK • Enter an email domain to check its public email security settings (SPF, DMARC and more) SCAN HISTORY & EXPORT • Review past scans and export them as PDF or CSV • Optional Face ID lock for your history MADE FOR EVERYDAY USE • Light and dark mode, with an Appearance setting (Auto, Light or Dark) • Home Screen quick actions and Siri Shortcuts • Available in English, Chinese (Simplified), Dutch, French, German, Italian, Japanese, Korean, Portuguese (Brazil) and Spanish (Latin America) IMPORTANT This app uses your iPhone's magnetometer and camera. It detects metal and magnetic fields, not wood or plastic, and it cannot see through walls. Results are indications, not guarantees. It is not a replacement for professional detection equipment or safety checks. SUBSCRIPTION & PRICING Metal Detector: Stud Finder is free to download with limited free scans. Unlock unlimited scans, all tools and an ad-free experience with: • Payment is charged to your Apple ID account at confirmation of purchase. • Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. • Your account is charged for renewal within 24 hours before the end of the current period, at the price of the chosen plan. • You can manage or cancel your subscription anytime in Settings > [your name] > Subscriptions. • Any unused portion of a free trial period, if offered, is forfeited when you purchase a subscription. • Prices may vary by country and are shown in your local currency in the app. Privacy Policy: https://sites.google.com/view/metal-detector-finder/privacy-policy Terms of Use: https://sites.google.com/view/metal-detector-finder/terms-conditions Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

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.

Highlights
  • 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
Features
Read full description

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/

Screenshots

Metal Detector4 screens
Metal Detector・EMF Reader3 screens

Verdict

The call

The clearest difference is update cadence: Metal Detector・EMF Reader at weekly against Metal Detector's every 5 months. Metal Detector・EMF Reader also leads on monetization model (free vs freemium). Metal Detector's advantage is ratings volume (8 vs 2). On price, rating, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Metal Detector sells 3 in-app purchases, starting at $3.99 per 7 days and Metal Detector・EMF Reader sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Metal Detector against 5.0 for Metal Detector・EMF Reader. Both are backed by a comparable volume of ratings — 8 and 2 respectively.

UpkeepUpdate frequency

Metal Detector ships an update every 5 months, Metal Detector・EMF Reader weekly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Metal Detector versus Metal Detector・EMF Reader: the parameters behind the verdict, then further details
ParameterMetal DetectorMetal Detector・EMF Reader
PriceFreeFree
Rating5.0 (8 ratings)5.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings8 — better2
Update frequencyEvery 5 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree — better
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better16.6
Further details — not scored
Size123 MB18 MB
Age rating4+4+
DeveloperReena WilliamsYash Mandhyan

Customer experience

Metal Detector

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Metal Detector・EMF Reader

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Metal Detector

Subscriptions3
  • Weekly Subscription$3.997 Days
  • Weekly Subscription3 Days trial$5.997 Days
  • Yearly Subscriptions$39.991 Year
1 purchases

Metal Detector・EMF Reader

One-time1
  • Lifetime Access$2.99

Questions

Is Metal Detector free?
Metal Detector is free to download, with in-app purchases available.
Is Metal Detector・EMF Reader free?
Metal Detector・EMF Reader is free to download, with in-app purchases available.
Which has better reviews, Metal Detector or Metal Detector・EMF Reader?
Metal Detector and Metal Detector・EMF Reader are both rated 5.0 out of 5 on the App Store, from 8 and 2 ratings respectively.
Do Metal Detector or Metal Detector・EMF Reader have ads?
Neither Metal Detector nor Metal Detector・EMF Reader shows ads.
Which is updated more often, Metal Detector or Metal Detector・EMF Reader?
Metal Detector ships an update every 5 months, and Metal Detector・EMF Reader weekly. Most recently, Metal Detector was updated on October 28, 2026 and Metal Detector・EMF Reader on October 25, 2026.

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