EMF Radiation Detector Reader vs Sensor Labs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Detect EMF radiation
- Measure EMF levels
- Identify risk zones
- Organize living space
- Measure appliance emissions
- No expensive equipment needed
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> 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/
Sensor Labs
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Sensor Labs turns your iPhone into a real-time physics laboratory. Instantly visualize motion, environmental, audio, and location sensors with clean dashboards and precise live data. Whether you are a student, engineer, or simply curious, Sensor Labs helps you explore how your iPhone senses the world around it. LIVE SENSOR MONITORING (13+ SENSORS) Motion Sensors * Accelerometer: Measure X, Y, Z acceleration forces * Gyroscope: Track rotation rate and angular velocity * Device Motion: Sensor fusion with attitude and quaternion data * Bubble Level: Precision spirit level for accurate alignment Magnetic Sensors * Magnetometer: Raw magnetic field values * Metal Detector: Detect hidden metal, pipes, and wires Environmental Sensors * Barometer: Atmospheric pressure and relative altitude * Thermal State: Monitor device temperature conditions * Brightness: Screen brightness monitoring * Proximity: Detect nearby objects Location and Audio * GPS: Location, altitude, speed, and heading * Microphone: Sound level meter with decibel readings, frequency analysis, and spectrum view DESIGNED FOR CLARITY AND SPEED * Real-time updates with no lag * Animated gauges, waveforms, and visualizations * Full-screen immersive sensor views * Swipe navigation between sensors * Customizable dashboard layout * Multiple themes with full dark mode support PERFECT FOR * Students and educators learning physics and motion * Engineers and developers testing sensor-based apps * DIY and home projects including leveling and detection * Science experiments and research * Anyone curious about iPhone hardware SENSOR LABS PRO Upgrade to Sensor Labs Pro to remove ads and unlock the full experience. One-time purchase. No subscriptions. PRIVACY FIRST All sensor data is processed locally on your device. We do not collect, store, or share personal or sensor data. Download Sensor Labs today and discover what your iPhone can really do.
Screenshots
Verdict
The clearest difference is update cadence: Sensor Labs at every 2 days against EMF Radiation Detector Reader's every 7 months. EMF Radiation Detector Reader's advantage is iOS requirement (15.6 vs 17.0). On price, ads, 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. EMF Radiation Detector Reader sells 2 in-app purchases, starting at $1.99 per 7 days and Sensor Labs sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
EMF Radiation Detector Reader ships an update every 7 months, Sensor Labs every 2 days. The most recent releases landed on September 24, 2026 and September 14, 2026 respectively.
| Parameter | EMF Radiation Detector Reader | Sensor Labs |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (4.7K ratings) — better | — |
| Positive reviews | 52.8% of reviews | — |
| Number of ratings | 4.7K — better | — |
| Update frequency | Every 7 months | Every 2 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 20 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Rounding Squares BV | Gnanasuriyan Gnana Oli |
Bugs and 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
Sensor Labs
Not enough reviews yet to summarise bugs or requests.
In-app purchases
EMF Radiation Detector Reader
- EMF Radiation Detector Premium Week3 Days trial$1.997 Days
- EMF Radiation Detector Premium Year$9.991 Year
Sensor Labs
- Sensor Labs Pro$9.99
Questions
Is EMF Radiation Detector Reader free?
Is Sensor Labs free?
Do EMF Radiation Detector Reader or Sensor Labs have ads?
Which is updated more often, EMF Radiation Detector Reader or Sensor Labs?
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