Comparison

Metal Detector & Magnetometer vs Unit Convert Go

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

Transform your iPhone into a professional metal detector. This app uses your device's magnetometer to detect ferrous metals with precision, ideal for finding lost objects or inspecting materials. It offers an intuitive interface with customizable sounds and themes.

Highlights
  • Uses iPhone magnetometer for detection
  • Detects ferrous metals
  • Intuitive professional interface
  • Customizable sounds and themes
  • Integrated flashlight
  • Instant use, no calibration
Features
Read full description

METAL DETECTOR PRO - 7 Modes, 1 iPhone Turn your iPhone into a professional-grade metal detector and magnetic field analyzer. MetalDetector Pro harnesses your device's built-in magnetometer to detect metal ferrous e magnet , measure electromagnetic fields, and visualize magnetic data in stunning real time — no extra hardware, no subscriptions, no limitations. ••• 7 POWERFUL MODES - SEARCH The classic metal detection experience, reimagined for modern iPhones. The app continuously reads the ambient magnetic field in microtesla (µT) and alerts you with audio beeps and haptic pulses as intensity changes. A 20-bar VU meter and three LED indicators give you instant, at-a-glance feedback. Perfect for locating hidden nails, coins, keys, electrical wiring, pipes and any ferromagnetic object beneath walls, floors or soil. • THRESHOLD Set a custom detection threshold and let the app work hands-free. Alerts fire only when the field exceeds your chosen sensitivity level — ideal when you need to focus on the surface you're scanning without watching the screen. • EMF Electromagnetic field meter mode. Identify live electrical wiring hidden inside walls, locate appliances radiating strong fields, and monitor your environment with a dedicated EMF intensity readout. A useful companion for electricians, home inspectors and the curious. • COMPASS A precision magnetic compass driven entirely by the magnetometer sensor — no GPS required. Clean neomorphic design with a smooth, real-time compass rose. Reliable heading data anywhere, even underground or indoors. • SPHERE The most visually striking mode in the app. Every sensor reading is plotted as a colored dot on a rotating 3D globe. Watch your scan history build into a living magnetic map — green for low-intensity fields, climbing through yellow and orange to alarm red as intensity rises. A mesmerizing way to understand the invisible forces around you. • DEPTH Estimate how deep a metallic source is hidden using real-time field gradient analysis. Point your iPhone at a wall, floor or patch of ground, press CALIBRATE, and receive a live distance readout in centimeters. Great for locating buried pipes, conduits and structural reinforcement. • 3D FIELD An immersive real-time particle simulation driven by the live magnetic field vector. Hundreds of animated particles drift, swirl and accelerate in response to the X, Y and Z field components. The stronger the field, the faster and more dramatic the particle storm becomes. ••• PREMIUM FEATURES ••• • Live µT readout with individual X, Y, Z axis values on a retro LCD display • 20-bar VU meter with green, yellow and red intensity zones • 3 LED indicators with progressive glow effect • Scrolling magnitude graph — last 150 samples always visible • Precision sensitivity slider with real-time signal filtering • Audible beep alerts with adjustable sensitivity • Haptic vibration feedback, independently togglable • Flashlight/torch for dark and confined environments • Auto-lock disable — screen stays on during extended scans • Neomorphic UI in both Light and Dark theme • Authentic retro LCD display with green phosphor aesthetics • Full localization: English and Italian ••• WORKS ON EVERY IPHONE No LiDAR. No external sensors. MetalDetector Pro runs on any iPhone with iOS 15 or later, using only the standard magnetometer chip built into every device. No camera permissions. No location tracking. Your data never leaves your device. ••• WHAT CAN YOU FIND? Buried metal ferrous e magnet-Nails and screws hidden in walls-Underground pipes and conduits-Live electrical cables · Lost keys and metal objects · Metal studs behind drywall · Old relics and artifacts Whether you're a DIY enthusiast, a treasure hunter, an electrician or simply curious about the invisible magnetic world around you — MetalDetector Pro delivers the most powerful, beautiful and complete magnetometer toolkit on the App Store. Download now and start exploring the world beneath the surface.

About

Unit Convert Go

This utility app offers fast, offline unit conversions for everyday needs. It supports a wide range of units including length, weight, temperature, and currency, with live, two-way conversion as you type. Favorite conversions can be pinned for quick access, and all data is kept private on your device.

Highlights
  • Live, two-way conversion
  • Offline-friendly
  • Pin favorite conversions
  • Recent conversions saved
  • Latest currency rates
  • Light and dark mode
Features
Read full description

Unit Convert is a fast, offline-friendly unit converter for everyday needs. Convert length, weight, temperature, area, volume, time, speed, data, energy, pressure, power, angle, fuel economy, frequency and currency with a clean, native interface. Key features - Live, two-way conversion as you type - Pin favorite unit pairs for one-tap access - Recent conversions saved on your device - Built-in conversion tables for any base unit - Latest currency rates from a public source, cached for offline use - Decimal precision, thousand separator and haptics in Settings - Light and dark mode, Dynamic Type, English and Simplified Chinese No account, no ads, no tracking. Your data stays on your device.

Screenshots

Metal Detector & Magnetometer4 screens
Unit Convert Go4 screens

Verdict

The call

The clearest difference is review sentiment: Unit Convert Go at 100% against Metal Detector & Magnetometer's 54%. Unit Convert Go also leads on price (Free vs $1.99) and update cadence (every 2 weeks vs every 5 months). On ads, 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

Unit Convert Go is free to download; Metal Detector & Magnetometer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Metal Detector & Magnetometer ships an update every 5 months, Unit Convert Go every 2 weeks. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

Scorecard5 real differences · 5 level
Metal Detector & Magnetometer versus Unit Convert Go: the parameters behind the verdict, then further details
ParameterMetal Detector & MagnetometerUnit Convert Go
Price$1.99Free — better
Rating1.0 (1 ratings) — better—
Positive reviews53.6% of reviews100.0% of reviews — better
Number of ratings1 — better—
Update frequencyEvery 5 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhoneiPhone, iPad — better
Requires iOS18.616.0 — better
Further details — not scored
Size11 MB3 MB
Age rating4+4+
DeveloperAndy Soft晓 郭

Customer experience

Metal Detector & Magnetometer

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews28 reviews
Positive53.6%
Neutral0.0%
Negative46.4%

Unit Convert Go

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Metal Detector & Magnetometer

No in-app purchases

None

Unit Convert Go

No in-app purchases

Questions

Is Metal Detector & Magnetometer free?
Metal Detector & Magnetometer costs $1.99, with no in-app purchases.
Is Unit Convert Go free?
Unit Convert Go is free to download, with no in-app purchases.
Do Metal Detector & Magnetometer or Unit Convert Go have ads?
Neither Metal Detector & Magnetometer nor Unit Convert Go shows ads.
Which is updated more often, Metal Detector & Magnetometer or Unit Convert Go?
Metal Detector & Magnetometer ships an update every 5 months, and Unit Convert Go every 2 weeks. Most recently, Metal Detector & Magnetometer was updated on October 19, 2026 and Unit Convert Go on October 15, 2026.

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