LSIS SmartViewer vs Magnetic Sensor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LSIS SmartViewer
Monitor LS Sanjeon ACB OCR and Smart MCCB devices via BLE communication. View device events and analyze fault waveforms with graphical representation. Supports ACB OCR S-type and Smart MCCB advanced models.
- BLE communication monitoring
- Device event viewing
- Fault waveform analysis
- Graph display of waveforms
- ACB OCR S-type support
- Smart MCCB advanced support
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LS 산전 ACB OCR 과 Smart MCCB를 BLE 통신으로 모니터링 할 수 있습니다. 각 기기의 이벤트를 확인 할 수 있습니다. 각 기기에 저장된 고장 파형을 그래프로 확인할 수 있습니다. ACB OCR S-type과 Smart MCCB 고급형을 지원 합니다.
Magnetic Sensor
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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
Verdict
The clearest difference is ads: LSIS SmartViewer at none against Magnetic Sensor's shown. LSIS SmartViewer also leads on iOS requirement (9.0 vs 15.1). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
LSIS SmartViewer ships an update every 8 days, Magnetic Sensor fortnightly. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.
| Parameter | LSIS SmartViewer | Magnetic Sensor |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 8 days — better | Fortnightly |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 18 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | LS ELECTRIC Co., Ltd. | Seonggon Sim |
In-app purchases
LSIS SmartViewer
No in-app purchases
Magnetic Sensor
No in-app purchases
Questions
Is LSIS SmartViewer free?
Is Magnetic Sensor free?
Do LSIS SmartViewer or Magnetic Sensor have ads?
Which is updated more often, LSIS SmartViewer or Magnetic Sensor?
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