Comparison

Magnetometer vs Stud Finder Pro

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 Finder Pro

Features
Read full description

Find studs and metal in walls using your phone's built-in magnetometer. Stud Finder Pro helps you hang shelves, mount TVs, and complete DIY projects safely. Perfect for: • Locating wall studs for mounting • Finding metal pipes and wiring • Safe drilling and hanging • DIY home improvement • Professional construction work Perfect for: • Locating wall studs for mounting • Finding metal pipes and wiring • Safe drilling and hanging • DIY home improvement • Professional construction work FEATURES: • Real-time magnetic field detection • Visual signal graph shows field strength changes • Haptic feedback when studs are detected • Adjustable sensitivity for different wall types • Calibration mode for maximum accuracy • Works on drywall, plaster, and wood walls • Clean, modern dark interface HOW IT WORKS: Stud Finder uses your iPhone's magnetometer to detect changes in the magnetic field caused by metal nails and screws in wall studs. Simply slide your phone along the wall and watch for signal spikes. PERFECT FOR: - Hanging shelves, TVs, and artwork - Home renovation and DIY projects - Finding hidden pipes and wires - Locating metal objects in walls All processing happens on your device. No data is collected or shared. Subscription unlocks unlimited scans, all sensitivity levels, and measurement history. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Magnetometer4 screens
Stud Finder Pro3 screens

Verdict

The call

The clearest difference is price: Stud Finder Pro at Free against Magnetometer's $1.99. Magnetometer's advantage is in-app purchases (none vs 1) and update cadence (weekly vs every 3 weeks). On ads 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

CostPrice · In-app purchases · Ads · Monetization

Stud Finder Pro is free to download; Magnetometer costs $1.99 up front. Stud Finder Pro sells 1 in-app purchase, starting at $4.99 per 7 days. Magnetometer asks for nothing beyond the download.

UpkeepUpdate frequency

Magnetometer ships an update weekly, Stud Finder Pro every 3 weeks. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

Scorecard4 real differences · 5 level
Magnetometer versus Stud Finder Pro: the parameters behind the verdict, then further details
ParameterMagnetometerStud Finder Pro
Price$1.99Free — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyWeekly — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size23 MB1 MB
Age rating4+4+
DeveloperSootheTrail Solutions LLCPROBABILITY LLC

In-app purchases

None

Magnetometer

No in-app purchases

1 purchases

Stud Finder Pro

Subscriptions1
  • Weekly Access$4.997 Days

Questions

Is Magnetometer free?
Magnetometer costs $1.99, with no in-app purchases.
Is Stud Finder Pro free?
Stud Finder Pro is free to download, with in-app purchases available.
Do Magnetometer or Stud Finder Pro have ads?
Neither Magnetometer nor Stud Finder Pro shows ads.
Which is updated more often, Magnetometer or Stud Finder Pro?
Magnetometer ships an update weekly, and Stud Finder Pro every 3 weeks. Most recently, Magnetometer was updated on October 24, 2026 and Stud Finder Pro on October 5, 2026.

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