Comparison

Magnetometer vs Stud + Metal Scanner

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

Head to head
About

Magnetometer

Transform your device into a precise electromagnetic field detector. Ideal for electrical safety checks, scientific exploration, and environmental monitoring with real-time readings and historical data.

Highlights
  • Real-time EMF detection
  • Historical trend charts
  • Customizable alerts
  • Data export
  • Multiple units support
  • Adjustable sampling rates
Read full description

Magnetometer turns your device into a precise electromagnetic field (EMF) detector using the built-in magnetometer sensor. Perfect for electrical safety checks, scientific exploration, and environmental monitoring. ONE-TIME PURCHASE - NO SUBSCRIPTION FEES, NO IN-APP PURCHASES, NO ADS Professional Features: • Real-time EMF detection with live updates • Beautiful circular gauge with color-coded intensity levels • Historical trend charts for pattern analysis • Customizable alert thresholds and notifications • Data export for further analysis • Multiple units support (µT and Gauss) • Adjustable sampling rates and smoothing Key Applications: • Electrical safety inspections • Scientific research and education • Environmental EMF monitoring • Electronics troubleshooting • Educational demonstrations Advanced Tools: • Save and review measurement sessions • Export data in standard formats • Customizable sensitivity settings • Professional-grade calibration • Clean, intuitive interface designed for both beginners and experts The app provides accurate readings using your device's built-in magnetometer, displaying measurements in both microtesla (µT) and Gauss units. The intuitive interface makes it easy to monitor electromagnetic fields in your environment. Pay once, own forever. No hidden costs, no subscriptions, no advertisements. Full functionality included with your purchase. Note: Accuracy depends on your device's sensor capabilities. This app is designed for educational and monitoring purposes. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Stud + Metal Scanner

Instantly locate studs, screws, and nails behind walls, or measure magnetic fields (EMF) using your iPhone's built-in sensor. This dual-mode utility is perfect for DIY projects, home improvement, and scientific exploration.

Highlights
  • Stud finder mode
  • Magnetometer (EMF) mode
  • Detect studs, screws, nails, and metal
  • Measure magnetic fields in real-time
  • Graph view for field changes
  • Pause scans for precision readings
  • Re-zero sensor for accuracy
Read full description

Detect studs, screws, nails, and measure magnetic fields (EMF) instantly with your iPhone. Two powerful modes in one app: Stud Finder & Magnetometer — works entirely on your iPhone. Perfect for DIY enthusiasts, home improvement projects, tech experiments, educational purposes, contractors, engineers, and anyone curious about magnetic fields or hidden metal. Stud Finder Mode Locate wall studs, screws, nails, metal pipes, and hidden metal objects behind drywall, plaster, and panel walls. Accurate readings using your iPhone's built-in magnetic sensor. Pro Tip: Hold the bottom third of the back near the wall — that's where the sensor is. Pause scans to note field values. Re-zero the sensor anytime for accurate readings. Ideal for hanging shelves, picture frames, cabinets, mirrors, or TVs without guesswork. Magnetometer Mode (EMF Detection) Measure magnetic fields in real time with a live graph. Detect EMF levels, metal objects, and magnetic anomalies. Perfect for students, engineers, hobbyists, STEM labs, and science fairs. Level Finder Mode (New in 2.1) Turn your iPhone into a precision spirit level — no extra hardware needed. Place your phone flat on a surface or hold it upright against a wall edge to measure tilt in real time. Locks with haptic feedback and a gentle audio tone the instant you hit perfect horizontal. Rotate to landscape for a full-screen gauge with a large degree readout. Ideal for hanging shelves, mirrors, TVs, tile work, carpentry, and furniture assembly. Three-in-One Functionality Find studs, detect magnetic fields (EMF), and level surfaces — all from one app. Perfect for home DIY, construction, school labs, STEM experiments, or curiosity-driven exploration. Provides actionable, real-time feedback for home improvement and tech applications. Why Users Love Stud + Metal Scanner Clean interface for scanning walls or visualizing magnetic fields. Real-time feedback ensures you never miss studs, screws, nails, or metal objects. Graph mode provides instant visual confirmation of field changes. Safe and reliable for home improvement, DIY, and tech explorations. Lightweight and fast Perfect for casual users, contractors, and technical professionals. Ideal for detecting hidden studs, metal objects, or performing STEM experiments. Pro Tips Move your iPhone slowly along walls for optimal detection. Re-zero the sensor whenever needed for accurate readings. Combine Stud Finder and Magnetometer modes to validate readings. Bottom third of iPhone back is optimal for scanning. Use Cases & Applications Hang shelves, TVs, picture frames, cabinets, mirrors, or artwork safely. Detect metal studs, screws, nails, wall anchors, and metal pipes. Explore magnetic fields in classrooms, labs, science fairs, or DIY tech projects. Measure EMF levels for STEM projects, experiments, or educational purposes. Identify hidden metal objects, magnetic anomalies, or ferrous materials. Track magnetic field trends visually with the graph for experiments or demonstrations. Perfect for homeowners, contractors, engineers, students, hobbyists, and interior designers and renovation professionals Curious minds exploring EMF or magnetic fields, STEM classrooms, educational labs, or science fairs Why Download Dual functionality: Stud Finder + Magnetometer Visual feedback: Graph shows field changes in real time Reliable: Perfect for home, school, or lab use Sensor guidance: Bottom third of iPhone back is optimal for scanning Versatile: DIY projects, home improvement, STEM experiments, and tech enthusiasts Download Stud + Metal Scanner now to make your next project easier, safer, and more accurate. Detect studs, screws, nails, metal objects, or explore magnetic fields (EMF) - all from your iPhone! Start scanning today and experience the most versatile Stud Finder & Magnetometer utility app on the App Store!

Screenshots

Magnetometer4 screens
Stud + Metal Scanner4 screens

Verdict

The call

The clearest difference is price: Stud + Metal Scanner at Free against Magnetometer's $1.99. Magnetometer's advantage is update cadence (weekly vs every 9 months) and iOS requirement (13.0 vs 15.6). On rating, ratings volume, 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

Stud + Metal Scanner is free to download; Magnetometer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Magnetometer against 5.0 for Stud + Metal Scanner. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Magnetometer ships an update weekly, Stud + Metal Scanner every 9 months. The most recent releases landed on October 1, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 6 level
Magnetometer versus Stud + Metal Scanner: the parameters behind the verdict, then further details
ParameterMagnetometerStud + Metal Scanner
Price$1.99Free — better
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings12 — better
Update frequencyWeekly — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size23 MB5 MB
Age rating4+4+
DeveloperSootheTrail Solutions LLCPRADEEP CHENDURAN BALASUNDARAM

Customer experience

Magnetometer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Stud + Metal Scanner

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Magnetometer

No in-app purchases

None

Stud + Metal Scanner

No in-app purchases

Questions

Is Magnetometer free?
Magnetometer costs $1.99, with no in-app purchases.
Is Stud + Metal Scanner free?
Stud + Metal Scanner is free to download, with no in-app purchases.
Which has better reviews, Magnetometer or Stud + Metal Scanner?
Magnetometer and Stud + Metal Scanner are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do Magnetometer or Stud + Metal Scanner have ads?
Neither Magnetometer nor Stud + Metal Scanner shows ads.
Which is updated more often, Magnetometer or Stud + Metal Scanner?
Magnetometer ships an update weekly, and Stud + Metal Scanner every 9 months. Most recently, Magnetometer was updated on October 1, 2026 and Stud + Metal Scanner on October 16, 2026.

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