Comparison

Magnetometer X vs Aquaread BlueLink

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

Head to head
About

Magnetometer X

Features
Read full description

Transform your iPhone or iPad into a precision magnetic field and metal detector. No ads! Magnetometer X uses your device's built-in sensor to measure electromagnetic fields in real time, helping you locate ferromagnetic metal objects, find studs behind walls, and explore the magnetic world around you. THREE POWERFUL MODES Gauge Mode (FREE) A beautiful analog-style gauge displays magnetic field strength with instant visual feedback. Perfect for quick metal detection and general-purpose measurements. Wall Scanner Mode (PRO) A real-time scrolling graph helps you locate studs, steel pipes, and magnetic anomalies hidden behind drywall. Scan slowly across a wall and watch the graph spike when you pass over metalβ€”no guesswork required. Scientific Mode (PRO) Built for students, researchers, and professionals who need deeper analysis: β€’ Visualization of magnetic 3D field vectors and polarity β€’ Separate X, Y, Z axis readings with total field magnitude β€’ Compare calibrated anomaly vs. total field β€’ Record data at 1 Hz, 10 Hz, or raw sensor rate (~100 Hz) β€’ Export GPS-tagged CSV logs for field research KEY FEATURES β€’ Zero Calibration – Set a baseline anywhere to detect relative changes β€’ Multiple Units – Display readings in microtesla (ΞΌT), milligauss (mG), or gauss (G) β€’ Audio & Haptic Feedback – Three sound styles plus tactile vibrations help you detect without looking at the screen (haptic feedback is not available on iPad) β€’ Dark & Light Themes – Choose your preferred appearance PRACTICAL USES β€’ Find wall studs before drilling β€’ Detect steel objects in walls, floors, or ceilings β€’ Identify magnetized tools β€’ Educational demonstrations of magnetic fields β€’ Paranormal investigation (EMF hunting) β€’ Science projects and physics experiments NO SUBSCRIPTIONS Unlock PRO features with a single one-time purchase. No recurring fees, no trials that expireβ€”just full access forever. IMPORTANT NOTE ON METALS: Magnetometer X detects ferrous (magnetic) metals like iron, steel, and nickel. It does not detect non-ferrous metals such as copper, aluminum, silver, or gold. If a pipe or stud is not magnetic, the sensor will not react to it.

About

Aquaread BlueLink

Features
Read full description

Discover the all-new BlueLink app, the official companion for Aquaread water quality probes. Turn your iPhone or iPad into a powerful monitoring station. With BlueLink, you can easily connect to your AquaProbe or AquaSonde via the BlueLink Bluetooth module to view, record, and analyze your environmental data in real time. Whether you are in the field or analyzing results later, BlueLink gives you full control over your water quality monitoring. Key Features: Real-Time Monitoring: View live data from your probe instantly, in both digital and graphical formats. Seamless Data Logging: Save your readings directly as CSV files. Easy Sharing & Access: Access your saved logs anytime to review, download, or share them on the go. Effortless Calibration: Calibrate every connected sensor quickly and accurately right from the app. Fully Customizable: Enjoy total flexibility by choosing exactly which parameters and units you want to display. Want to learn more? Visit the official Aquaread website for full details: https://www.aquaread.com/products/bluetooth-and-telemetry/bluelink

Screenshots

Magnetometer X4 screens
Aquaread BlueLink4 screens

Verdict

The call

The clearest difference is in-app purchases: Aquaread BlueLink at none against Magnetometer X's 1. Aquaread BlueLink also leads on iOS requirement (15.6 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Magnetometer X sells 1 one-off in-app purchase. Aquaread BlueLink asks for nothing beyond the download.

UpkeepUpdate frequency

Magnetometer X ships an update every 3 weeks, Aquaread BlueLink fortnightly. Both last shipped on October 28, 2026.

Scorecard2 real differences Β· 4 level
Magnetometer X versus Aquaread BlueLink: the parameters behind the verdict, then further details
ParameterMagnetometer XAquaread BlueLink
PriceFreeFree
Update frequencyEvery 3 weeksFortnightly β€” better
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS18.015.6 β€” better
Further details β€” not scored
Size7 MB25 MB
Age rating4+4+
DeveloperRok DovecarNKE INSTRUMENTATION

In-app purchases

1 purchases

Magnetometer X

One-time1
  • Magnetometer X PRO$4.99
None

Aquaread BlueLink

No in-app purchases

Questions

Is Magnetometer X free?
Magnetometer X is free to download, with in-app purchases available.
Is Aquaread BlueLink free?
Aquaread BlueLink is free to download, with no in-app purchases.
Do Magnetometer X or Aquaread BlueLink have ads?
Neither Magnetometer X nor Aquaread BlueLink shows ads.
Which is updated more often, Magnetometer X or Aquaread BlueLink?
Magnetometer X ships an update every 3 weeks, and Aquaread BlueLink fortnightly. Most recently, Magnetometer X was updated on October 28, 2026 and Aquaread BlueLink on October 28, 2026.

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