Comparison

Magnetometer ∞ vs Magnetic Sensor

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

Head to head
About

Magnetometer ∞

Visualize magnetic fields in real-time with precision charts and monitor X, Y, Z axis readings. Ideal for scientific research, education, and field work, this app offers professional-grade accuracy and an intuitive interface for easy data interpretation.

Highlights
  • Real-time magnetic field visualization
  • X, Y, Z axis readings in microteslas
  • Scientific research tool
  • Educational aid
  • Field work companion
  • Intuitive interface
Read full description

Magnetometer Visualizer - Explore the invisible magnetic world - Visualize magnetic fields in real-time with precision charts - Monitor X, Y, Z axis readings in microteslas (µT) - Perfect for scientific research, education, and field work - Professional-grade accuracy for reliable measurements - Clean, intuitive interface for easy data interpretation Whether you're a researcher, student, or professional, unlock the power of magnetic field analysis with stunning real-time visualization. Privacy Policy: https://apps.fawkeswei.com/magnetometer/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Magnetic Sensor

Features
Read full description

Magnetic Sensor turns your phone's built-in magnetometer into three precise tools: • Compass — A live, tilt-compensated compass with cardinal direction (N/E/S/W) and adjustable magnetic declination so the needle points to true north, not just magnetic north. • Metal Detector — Set a baseline reading anywhere, choose Low/Med/High sensitivity, and feel haptic pulses that get stronger as the field deviates. Perfect for finding studs in a wall, screws under drywall, or rebar in concrete. • Field Logger — Record samples at up to 60 Hz, then export to CSV via the share sheet. Saved recordings stay in the app for replay or re-export. KEY FEATURES • Live X / Y / Z axis readings + total field magnitude • Tilt-compensated heading using the accelerometer • Magnitude history sparkline + multi-channel chart • Rolling statistics: mean, standard deviation, RMS, range • Figure-8 calibration helper with quality indicator • Min / Max tracking with one-tap reset • Three sample rates: Slow (500 ms), Normal (100 ms), Fast (16 ms) • Light / Dark / System theme • English and Korean • Unit options: μT, mGauss, nT • Adjustable smoothing • Magnetic declination presets • Haptic alerts for the detector • Keep-screen-awake while recording • CSV export with full timestamp + per-axis data PRIVACY All sensor data is processed on-device and never leaves your phone. The app does not collect location, contacts, or personal information. Anonymous mobile advertising is used to keep the app free; you can watch a rewarded ad to unlock unlimited CSV sharing for the session. WHO IT'S FOR • Hobbyists exploring magnetic fields • DIYers detecting screws, studs, and rebar • Students collecting data for physics or geology projects • Hikers wanting a reliable phone compass • Anyone curious about the invisible field around them REQUIREMENTS A device with a magnetometer (most phones built since ~2013). The app cannot work on devices without one — it will tell you on launch.

Screenshots

Magnetometer ∞2 screens
Magnetic Sensor4 screens

Verdict

The call

The clearest difference is in-app purchases: Magnetic Sensor at none against Magnetometer ∞'s 2. Magnetic Sensor also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, 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

Both are free to download. Magnetometer ∞ sells 2 in-app purchases, starting at $1.99 per 7 days. Magnetic Sensor asks for nothing beyond the download.

UpkeepUpdate frequency

Magnetometer ∞ ships an update every 2 weeks, Magnetic Sensor fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
Magnetometer ∞ versus Magnetic Sensor: the parameters behind the verdict, then further details
ParameterMagnetometer ∞Magnetic Sensor
PriceFreeFree
Rating4.4 (59 ratings) — better—
Number of ratings59 — better—
Update frequencyEvery 2 weeks — betterFortnightly
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size16 MB25 MB
Age rating4+4+
DeveloperFawkes WeiSeonggon Sim

In-app purchases

2 purchases

Magnetometer ∞

Subscriptions1
  • Weekly$1.997 Days
One-time1
  • Lifetime$9.99
None

Magnetic Sensor

No in-app purchases

Questions

Is Magnetometer ∞ free?
Magnetometer ∞ is free to download, with in-app purchases available.
Is Magnetic Sensor free?
Magnetic Sensor is free to download, with no in-app purchases.
Do Magnetometer ∞ or Magnetic Sensor have ads?
Both Magnetometer ∞ and Magnetic Sensor show ads.
Which is updated more often, Magnetometer ∞ or Magnetic Sensor?
Magnetometer ∞ ships an update every 2 weeks, and Magnetic Sensor fortnightly. Most recently, Magnetometer ∞ was updated on October 30, 2026 and Magnetic Sensor on October 31, 2026.

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