Comparison

Metal Detector. Magnetometer vs Magnetometer...

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

Head to head
About

Metal Detector. Magnetometer

This utility app turns your device into a magnetic field detector. It measures magnetic fields in real-time, providing detailed 3-axis data and color-coded alerts for metal detection. Useful for finding hidden objects and for educational purposes.

Highlights
  • Real-time magnetic field measurement
  • 3-axis data visualization
  • Color-coded metal detection alerts
  • Manual calibration
  • Geomagnetic rotation vector display
  • Magnitude history tracking
Features
Read full description

Metal Detector & Magnetometer transforms your device into a precision magnetic field detector. Measure magnetic fields in real-time with detailed 3-axis data visualization. FEATURES: • Real-time magnetic field strength measurement in microteslas (µT) • 3-axis breakdown (X, Y, Z) of calibrated magnetic field readings • Color-coded alerts: green (normal), yellow (elevated), red (metal detected) • Manual calibration to set a baseline reference value • Uncalibrated sensor data with iron bias correction • Geomagnetic rotation vector display • Magnitude history tracking • Adjustable sensor sampling rate PERFECT FOR: • Finding metal studs, pipes, and wires in walls • Detecting hidden ferromagnetic objects • Science experiments and educational use • Exploring magnetic fields in your environment IMPORTANT: This detector works with ferromagnetic materials only (iron, steel, nickel). It will not detect non-ferromagnetic materials like aluminum, gold, or copper.

About

Magnetometer...

Features
Read full description

Turn your phone into a real-time magnetometer and magnetic field measurement tool. FREE TO USE. NO ACCOUNT REQUIRED. ALL YOUR DATA IS STORED LOCALLY ON YOUR DEVICE. Magnetometer uses your device’s built-in magnetic sensor to measure magnetic field strength in µT. View X, Y and Z axis readings, track changes, record measurements, review history, and export your data as CSV. REAL-TIME MAGNETOMETER • Real-time magnetic field strength in µT • Individual X, Y and Z axis readings • Total magnetic field strength • Absolute and relative measurement modes • Custom baseline for measuring relative changes • Calibration guidance to help improve sensor accuracy MAGNETIC FIELD ALERTS Set a custom threshold and receive optional sound and vibration alerts when magnetic field strength exceeds your selected level. RECORDING & HISTORY Record magnetic field measurements over time and review saved sessions later. • Live recording and timeline • Current, minimum, maximum and average readings • X, Y and Z measurement data • Recording timestamps and duration • Detailed graphs and statistics • Measurement mode and sample information • Rename or delete recordings • Refresh or clear measurement history CSV EXPORT Export recorded magnetic field data as CSV for spreadsheets, analysis, experiments or other projects. CUSTOMIZATION & EXTRAS • 4 visual styles: Dark Green, Light Green, Neon and Warm • Support for 77+ languages • Offline mode available with subscription • Ad-free experience available with subscription • Built-in feedback and suggestions USE MAGNETOMETER FOR Explore magnetic fields, compare field strength between objects or locations, detect magnetic changes, test your phone’s magnetic sensor, run experiments and demonstrations, or record measurements for later analysis. Magnetic field readings depend on your device’s built-in magnetometer and calibration. Nearby magnets, metal objects and electronics may affect measurements. This app is intended for general measurement, experimentation and educational use and is not a replacement for calibrated professional equipment. LICENSED APPLICATION END USER LICENSE AGREEMENT: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Metal Detector. Magnetometer4 screens
Magnetometer...4 screens

Verdict

The call

The clearest difference is ads: Metal Detector. Magnetometer at none against Magnetometer...'s shown. Magnetometer...'s advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases 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

Both are free to download. Metal Detector. Magnetometer sells 1 one-off in-app purchase and Magnetometer... sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Metal Detector. Magnetometer ships an update every 4 months, Magnetometer... every 2 months. Both last shipped on November 13, 2026.

Scorecard2 real differences · 7 level
Metal Detector. Magnetometer versus Magnetometer...: the parameters behind the verdict, then further details
ParameterMetal Detector. MagnetometerMagnetometer...
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size5 MB86 MB
Age rating4+4+
DeveloperAlejandro CordonOlga Ivanova

In-app purchases

1 purchases

Metal Detector. Magnetometer

One-time1
  • Magnetometer Pro$1.99
2 purchases

Magnetometer...

Subscriptions1
  • magnetometer_by_oliva_subscription$1.991 Month
One-time1
  • magnetometer_by_oliva_donation$1.99

Questions

Is Metal Detector. Magnetometer free?
Metal Detector. Magnetometer is free to download, with in-app purchases available.
Is Magnetometer... free?
Magnetometer... is free to download, with in-app purchases available.
Do Metal Detector. Magnetometer or Magnetometer... have ads?
Magnetometer... shows ads; Metal Detector. Magnetometer does not.
Which is updated more often, Metal Detector. Magnetometer or Magnetometer...?
Metal Detector. Magnetometer ships an update every 4 months, and Magnetometer... every 2 months. Most recently, Metal Detector. Magnetometer was updated on November 13, 2026 and Magnetometer... on November 13, 2026.

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