Comparison

LSE SmartViewer 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

LSE SmartViewer

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This is an app that monitors ACB STU and Smart MCCB using Bluetooth communication. Through this app, you can check the settings and measured status information of each equipment in real time, and check occurred events and stored trip waves through graphic charts.

About

Magnetic Sensor

Features
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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

LSE SmartViewer4 screens
Magnetic Sensor4 screens

Verdict

The call

The clearest difference is ads: LSE SmartViewer at none against Magnetic Sensor's shown. LSE SmartViewer also leads on iOS requirement (11.0 vs 15.1). On price, update cadence, in-app purchases and device support there is nothing between them.

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

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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

LSE SmartViewer ships an update every 3 weeks, Magnetic Sensor fortnightly. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

Scorecard2 real differences Ā· 4 level
LSE SmartViewer versus Magnetic Sensor: the parameters behind the verdict, then further details
ParameterLSE SmartViewerMagnetic Sensor
PriceFreeFree
Update frequencyEvery 3 weeksFortnightly — better
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better15.1
Further details — not scored
Size158 MB25 MB
Age rating17+4+
DeveloperLS ELECTRIC Co., Ltd.Seonggon Sim

In-app purchases

None

LSE SmartViewer

No in-app purchases

None

Magnetic Sensor

No in-app purchases

Questions

Is LSE SmartViewer free?
LSE SmartViewer is free to download, with no in-app purchases.
Is Magnetic Sensor free?
Magnetic Sensor is free to download, with no in-app purchases.
Do LSE SmartViewer or Magnetic Sensor have ads?
Magnetic Sensor shows ads; LSE SmartViewer does not.
Which is updated more often, LSE SmartViewer or Magnetic Sensor?
LSE SmartViewer ships an update every 3 weeks, and Magnetic Sensor fortnightly. Most recently, LSE SmartViewer was updated on October 6, 2026 and Magnetic Sensor on October 7, 2026.

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