Comparison

AGT 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

AGT

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Приложение AGT-GSM3 Control представляет собой интерфейс управления и настройки модуля AGT-GSM3 через SMS-команды и реализует следующие функции: - Управление тремя выходными каналами "Автозапуск", "Отопитель" и "Блокировка" с возможностью их работы по таймеру; - Запрос баланса счета модуля AGT-GSM3; - Определение трех индивидуальных команд пользователя; - Запрос состояния модуля AGT-GSM3; - Настройка контроля за напряжением питания и температурой; - Настройка контроля за тремя входными каналами; - Справочно-информационный режим по работе с приложением.

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

AGT4 screens
Magnetic Sensor4 screens

Verdict

The call

The clearest difference is device support: Magnetic Sensor at 2 against AGT's —. On price, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 5 level
AGT versus Magnetic Sensor: the parameters behind the verdict, then further details
ParameterAGTMagnetic Sensor
PriceFreeFree
Update frequency—Fortnightly
Ads—Yes
In-app purchasesNoNo
Devices—iPhone, iPod — better
Requires iOS14.2 — better15.1
Further details — not scored
Size1 MB25 MB
Age rating4+4+
DeveloperIvan AndriyanovSeonggon Sim

In-app purchases

None

AGT

No in-app purchases

None

Magnetic Sensor

No in-app purchases

Questions

Is AGT free?
AGT is free to download, with no in-app purchases.
Is Magnetic Sensor free?
Magnetic Sensor is free to download, with no in-app purchases.

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