Comparison

Physics Toolbox Sensor Suite vs EMF Radiation Detector Reader

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

Head to head
About

Physics Toolbox Sensor Suite

This app turns your smartphone into a scientific instrument suite, enabling measurement, recording, analysis, and export of real-time sensor data. It offers tools for kinematics, acoustics, light, magnetism, and more, suitable for students, educators, researchers, and hobbyists.

Highlights
  • Real-time sensor data measurement
  • Data recording and analysis
  • Data export functionality
  • Kinematics tools (accelerometer, gyroscope)
  • Acoustics tools (sound meter, oscilloscope)
  • Magnetism tools (compass, magnetometer)
  • AR visualization for magnetic fields and measurements
Features
Read full description

Whether you’re a student, educator, researcher, or hobbyist, Physics Toolbox transforms your smartphone’s built-in sensors into a powerful suite of scientific instruments. Easily measure, record, analyze, and export real-time data for a variety of uses—from classroom experiments to cutting-edge research. KINEMATICS G-Force Meter Linear Accelerometer Gyroscope Inclinometer Motion Visualizer (LiDAR-tracked position and velocity) ACOUSTICS Sound Meter Tone Detector Tone Generator Oscilloscope Spectrum Analyzer Spectrogram LIGHT Light Meter Color Detector Proximeter Stroboscope MAGNETISM Compass Magnetometer Magna-AR (AR visualization of magnetic field vectors) OTHER Barometer GPS - latitude, longitude, altitude, speed, direction, number of satellites Ruler-AR (AR-estimated measurements) COMBINATION Multi Record Roller Coaster GAME Play (data-verified challenges)

About

EMF Radiation Detector Reader

Detect electromagnetic fields (EMF) around you using your phone's sensors. Identify high-radiation zones in your home and workplace to better organize your environment and potentially improve well-being. Measure EMF emitted by various electronic devices and appliances.

Highlights
  • Detect EMF radiation
  • Measure EMF levels
  • Identify risk zones
  • Organize living space
  • Measure appliance emissions
  • No expensive equipment needed
Features
Read full description

> Detect Invisible Fields: Find the ElectroMagnetic Fields around you in seconds > Pro-Grade Precision: High-accuracy Magnetic Field Analyzer & Gauss Meter with Advanced Signal Stabilization. > Record, Analyze & Export: track trends with interactive data charts and save detailed logs for professional analysis. Check out the areas where you work (desk, meeting rooms), where you sleep (bed), where you relax (couch, living room) and find the levels of EMF you are exposed to. Also use the app to measure the fields emitted by your appliances (computer, fridge, speaker, phone...). PROFESSIONAL MAGNETIC FIELD ANALYZER & GAUSS METER: Discover the invisible magnetic world around you. Using your device’s internal magnetometer, the app provides a comprehensive look at the electromagnetic fields (ELF) generated by electronic devices, wiring, and ferromagnetic materials. NEW PROFESSIONAL FEATURES: - 3-Axis Vector Analysis: Real-time $x, y,$ and $z$ coordinate tracking for precise field directionality. - Interactive History Graphs: Visualize time evolution with high-resolution charts that track spikes and trends. - Clean Signal Mode (LPF): Toggle an advanced Low-Pass Filter to stabilize readings and remove sensor jitter for professional-grade clarity - Save & Export Logs: Record your sessions and export data for further analysis in external software. VERSATILE USE CASES: Electronics Inspection: Measure the magnetic footprint of computers, speakers, and home appliances. Metal Detection: Locate ferromagnetic objects like iron pipes or steel studs behind walls. Interference Calibration: Find the "quietest" zones for sensitive electronic equipment or audio setups. USER EXPECTATIONS & DISCLOSURE: This app is designed as a sophisticated utility for detecting Magnetic Fields (ELF). What it detects: Magnetic flux from magnets, ferrous metals, and the low-frequency electromagnetic fields emitted by electronic components, power supplies, and speakers. What it does NOT detect: This app is not a radio frequency (RF) scanner. It cannot detect Wi-Fi signals, Bluetooth, 5G cellular radiation, or microwave leakage. DISCLAIMER: - This app is intended for educational and utility purposes. It is not a substitute for certified industrial or scientific equipment. It does not provide medical advice or guarantee "safe zones" in a clinical sense. This app does not guarantee exact measures as other fields can interfere with the compass inside your phone, which is used to detect the fields. SUBSCRIPTIONS: - Length: weekly, yearly - Your payment will be charged at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - To Manage or Cancel your subscription, it can be done via the Settings app of your device. For more detail, see https://support.apple.com/en-us/118428 . - To Manage or Cancel your subscription, it can also be done directly from the app: Go to ‘Settings’ screen inside our app, tap on ‘Manage Subscriptions’ and the app will directly open the list of your Subscriptions with the AppStore. You can select a subscription and check available plans or cancel subscription. - When canceling a subscription, your subscription will remain active until the end of the period. Auto-renewal will be disabled but the current subscription will not be refunded. - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Read our Privacy Policy at: https://roundingsquares.com/privacy/ Read our Terms of Use at: https://roundingsquares.com/terms/

Screenshots

Physics Toolbox Sensor Suite4 screens
EMF Radiation Detector Reader3 screens

Verdict

The call

The clearest difference is ads: Physics Toolbox Sensor Suite at none against EMF Radiation Detector Reader's shown. Physics Toolbox Sensor Suite also leads on update cadence (weekly vs every 7 months) and review sentiment (80% vs 53%). On price, ratings volume, in-app purchases and monetization model 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. Physics Toolbox Sensor Suite sells 1 one-off in-app purchase and EMF Radiation Detector Reader sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Physics Toolbox Sensor Suite holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 1.8K and 4.7K respectively. Written reviews point the same way: 80% of Physics Toolbox Sensor Suite's written reviews are positive against 53% of EMF Radiation Detector Reader's.

UpkeepUpdate frequency

Physics Toolbox Sensor Suite ships an update weekly, EMF Radiation Detector Reader every 7 months. Both last shipped on September 24, 2026.

Scorecard4 real differences · 6 level
Physics Toolbox Sensor Suite versus EMF Radiation Detector Reader: the parameters behind the verdict, then further details
ParameterPhysics Toolbox Sensor SuiteEMF Radiation Detector Reader
PriceFreeFree
Rating4.7 (1.8K ratings) — better4.5 (4.7K ratings)
Positive reviews80.5% of reviews — better52.8% of reviews
Number of ratings1.8K4.7K — better
Update frequencyWeekly — betterEvery 7 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size77 MB20 MB
Age rating4+4+
DeveloperChrystian VieyraRounding Squares BV

Customer experience

Physics Toolbox Sensor Suite

All ratings1,786 ratings
Positive93.8%
Neutral2.9%
Negative3.3%
Written reviews123 reviews
Positive80.5%
Neutral8.1%
Negative11.4%

EMF Radiation Detector Reader

All ratings4,738 ratings
Positive87.4%
Neutral4.8%
Negative7.8%
Written reviews371 reviews
Positive52.8%
Neutral8.9%
Negative38.3%

Bugs and requests

Physics Toolbox Sensor Suite

Not enough reviews yet to summarise bugs or requests.

EMF Radiation Detector Reader

Reported bugs

2 issues
  • Readings inconsistent or inaccurate
  • Doesn't work as expected, only detects magnets

Requested features

3 requests
  • Add sound or vibration alerts for high EMF
  • Provide more information on EMF levels and safety
  • Improve layout to avoid ads covering readings

In-app purchases

1 purchases

Physics Toolbox Sensor Suite

One-time1
  • Upgrade to Pro$5.99
2 purchases

EMF Radiation Detector Reader

Subscriptions2
  • EMF Radiation Detector Premium Week3 Days trial$1.997 Days
  • EMF Radiation Detector Premium Year$9.991 Year

Questions

Is Physics Toolbox Sensor Suite free?
Physics Toolbox Sensor Suite is free to download, with in-app purchases available.
Is EMF Radiation Detector Reader free?
EMF Radiation Detector Reader is free to download, with in-app purchases available.
Which has better reviews, Physics Toolbox Sensor Suite or EMF Radiation Detector Reader?
Physics Toolbox Sensor Suite is rated higher. Physics Toolbox Sensor Suite averages 4.7 out of 5 from 1.8K ratings, while EMF Radiation Detector Reader averages 4.5 from 4.7K ratings.
Do Physics Toolbox Sensor Suite or EMF Radiation Detector Reader have ads?
EMF Radiation Detector Reader shows ads; Physics Toolbox Sensor Suite does not.
Which is updated more often, Physics Toolbox Sensor Suite or EMF Radiation Detector Reader?
Physics Toolbox Sensor Suite ships an update weekly, and EMF Radiation Detector Reader every 7 months. Most recently, Physics Toolbox Sensor Suite was updated on September 24, 2026 and EMF Radiation Detector Reader on September 24, 2026.

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