Comparison

Metal Detector EMF vs Stud Finder®

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

Head to head
About

Metal Detector EMF

This application uses your smartphone's magnetic sensor to detect nearby metal objects. It can help you find hidden metallic items, act as a treasure hunting tool, or even assist in ghost hunting by visualizing magnetic field trends. Requires a device with a magnetic sensor to function.

Highlights
  • Detects nearby metal
  • Measures magnetic field
  • Finds hidden metallic objects
  • Acts as a treasure hunter tool
  • Assists ghost hunters
  • Visualizes reading trends with a graph
Features
Read full description

Metal Detector EMF detects the presence of metal nearby. Metal detectors measure magnetic field value using a magnetic sensor that is built into your smartphone. Now You can easily find metallic objects that are hidden underground, behind walls etc. , or be a treasure hunter or ghost hunters, also see a reading trend through the graph. Simple app in your device called Gauss Meter are used for measuring the Earth's magnetic field but can't detect silver, gold, copper coins (non-ferrous - no magnetic field). This Magnetometer app require a magnetic sensor otherwise does not work.

About

Stud Finder®

This utility app uses your iPhone's magnetometer to detect metal studs behind walls. Simply hold your device near the wall and observe the indicator for changes in the magnetic field. For best results, remove any external case from your phone.

Highlights
  • Detect metal studs
  • Uses magnetometer
  • Measures magnetic field
  • Indicator for metal proximity
  • Instructions for accuracy
Features
Read full description

Find the right spot. Mount with confidence. Turn your iPhone into a handy magnetic stud finder. Use your device’s built-in magnetic sensor to locate magnetic changes that may indicate screws, nails, or other ferrous metal behind a wall. Follow the needle, watch the live graph, and hear stronger signals as you scan. Try Pro with a 3-day free trial on the Weekly plan for eligible new subscribers. FEATURES • Unlimited Scanning (Pro Required) Scan without measurement time limits or interruptions. • Live Signal Gauge & Graph (Pro Required) See magnetic changes through a responsive needle and a live graph with X, Y, and Z readings. • Adjustable Sensitivity (Pro Required for Scanning) Fine-tune the detector’s response to suit your surroundings. • Sound & Haptic Detection (Pro Required) Keep your attention on the wall. Faster beeps and firmer haptic feedback help you follow stronger signals. Turn both off whenever you prefer. • Simple, Illustrated Instructions Learn how to prepare the sensor, scan steadily, and look for signal peaks with a three-step guide. • Flexible Viewing (Pro Required for Scanning) Scan in portrait or landscape, with layouts adapted for iPhone and iPad. START WITH A FREE TRIAL Explore Pro with a 3-day free trial on the Weekly subscription, subject to eligibility. Weekly and Yearly plans are available. Pricing and trial availability are shown before purchase. Subscriptions renew automatically unless canceled before renewal through your App Store account settings. PLEASE NOTE Stud Finder detects magnetic field changes; it does not directly detect wood. Results depend on your device, distance, metal type, and nearby magnetic interference. Terms Of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Metal Detector EMF4 screens
Stud Finder®4 screens

Verdict

The call

The clearest difference is review sentiment: Metal Detector EMF at 68% against Stud Finder®'s 8%. Metal Detector EMF also leads on rating (4.6 vs 4.4) and iOS requirement (13.0 vs 15.1). Stud Finder®'s advantage is update cadence (every 5 weeks vs every 9 months) and ratings volume (23K vs 2.5K). On price, ads, in-app purchases and monetization model 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 EMF sells 1 one-off in-app purchase and Stud Finder® sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Metal Detector EMF holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Stud Finder® has 23K ratings behind it against 2.5K, so its average is the more settled of the two. Written reviews point the same way: 68% of Metal Detector EMF's written reviews are positive against 8% of Stud Finder®'s.

UpkeepUpdate frequency

Metal Detector EMF ships an update every 9 months, Stud Finder® every 5 weeks. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

Scorecard5 real differences · 5 level
Metal Detector EMF versus Stud Finder®: the parameters behind the verdict, then further details
ParameterMetal Detector EMFStud Finder®
PriceFreeFree
Rating4.6 (2.5K ratings) — better4.4 (23K ratings)
Positive reviews68.4% of reviews — better7.8% of reviews
Number of ratings2.5K23K — better
Update frequencyEvery 9 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size11 MB24 MB
Age rating4+4+
DeveloperExaMobile S.A.Tue Nguyen Minh

Customer experience

Metal Detector EMF

All ratings2,390 ratings
Positive92.1%
Neutral3.3%
Negative4.6%
Written reviews475 reviews
Positive68.4%
Neutral5.3%
Negative26.3%

Stud Finder®

All ratings22,986 ratings
Positive84.0%
Neutral4.1%
Negative12.0%
Written reviews293 reviews
Positive7.8%
Neutral1.4%
Negative90.8%

User reviews

Metal Detector EMF

From 2.5K App Store ratings

What we love

  • 🚀 Works great
  • 👍 Surprisingly accurate
  • 🔍 Helpful for finding lost items
  • 💡 Innovative use of phone sensors
  • 🔍 Useful for locating property markers

Room to improve

  • 🐛 Inconsistent performance
  • 🔍 Limited detection range
  • 🔍 Only detects magnetic metals
  • 🔋 Drains battery quickly

Stud Finder®

From 23K App Store ratings

What we love

  • 🚀 Accurately detects metal objects
  • 💡 Innovative use of phone sensors
  • 👍 Helpful for specific use cases

Room to improve

  • 🔒 Aggressive monetization with constant upgrade prompts
  • 🐛 Inconsistent and unreliable performance
  • 👎 Limited functionality in free version
  • 🕰️ Extremely short usage time before lockout

Bugs and requests

Metal Detector EMF

Reported bugs

3 issues
  • Settings page not functioning
  • App crashes on some devices
  • Inaccurate readings in certain situations

Requested features

4 requests
  • Ability to detect non-magnetic metals
  • Improved sensitivity and detection range
  • Option to calibrate the sensor
  • Metal identification feature

Stud Finder®

Reported bugs

3 issues
  • Fails to detect known metal objects
  • Erratic behavior and constant beeping
  • Upgrade issues even after purchase

Requested features

3 requests
  • Ability to detect wooden studs
  • Longer free trial period
  • More intuitive user interface

In-app purchases

1 purchases

Metal Detector EMF

One-time1
  • AdBlock - Remove ads$1.99
3 purchases

Stud Finder®

Subscriptions2
  • Stud Finder Pro (Weekly)3 Days trial$1.997 Days
  • Stud Finder Pro (Yearly)$9.991 Year
One-time1
  • Pro Features$1.99

Questions

Is Metal Detector EMF free?
Metal Detector EMF is free to download, with in-app purchases available.
Is Stud Finder® free?
Stud Finder® is free to download, with in-app purchases available.
Which has better reviews, Metal Detector EMF or Stud Finder®?
Metal Detector EMF is rated higher. Metal Detector EMF averages 4.6 out of 5 from 2.5K ratings, while Stud Finder® averages 4.4 from 23K ratings.
Do Metal Detector EMF or Stud Finder® have ads?
Neither Metal Detector EMF nor Stud Finder® shows ads.
Which is updated more often, Metal Detector EMF or Stud Finder®?
Metal Detector EMF ships an update every 9 months, and Stud Finder® every 5 weeks. Most recently, Metal Detector EMF was updated on November 6, 2026 and Stud Finder® on November 8, 2026.

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