Comparison

Electronic Device Detector 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

Electronic Device Detector

This app helps you locate lost or hidden electronic devices nearby. It offers two modes: an Infrared Detector for IR-emitting devices like remotes and cameras, and a magnetic sensor mode to find electronics like phones and laptops by analyzing magnetic fields. It also provides tips for staying protected in public.

Highlights
  • Infrared Detector mode
  • Magnetic sensor mode
  • Find lost phones
  • Detect hidden cameras
  • Tip & Tricks for protection
  • Scan for electronics
Features
Read full description

Electronic Device Detector/Finder app facilitates you to detect any kind of electronics in your vicinity. It is for you if you usually forget where you have put your phone and its on silent. You can easily find lost or hidden devices nearby. App Provides you with 2 modes: 1- Infrared Detector - You can detect Remotes or IR cameras with this mode or any device which emits an IR light. Just close all lights in the place you are and open IR camera mode and scan moving iPhone full 360 degrees, If you see white light or blue light that is invisible to naked eye, then it is infrared light and it could be infrared camera or a remote, well you have to inspect further. Usage: Test with TV remote control light - See TV remote control head with normal eye and press any button, you will not see any light. Then open normal camera or open app and see through the camera - you will see white light. Reason for this is that infrared light is not visible to naked eye but it is visible when seen through a camera. This way you can easily detect IR emitting devices if any. 2. Scan with magnetic sensor – With this mode, app analyse magnetic field around the phone. This feature enables you to find electronic devices like mobile, laptop/pc, cameras etc. If there is a high magnetic filed around, the app will show a warning so you can further investigate. Usage: Move top of your iPhone very close to the object you suspect. It could be screw, flowerpot, shower head, toys or anything that you find suspicious. If app shows a warning when the phone is brought closer to the object, further investigate for camera lens or a mobile phone or any electronic device. It can also be used as hidden camera detector while staying at a hotel room. App also provide you with tip & Tricks so that you can stay protected with some simple tricks or hacks whenever you are in public place. Please rate, comment if you like our app so that we can improve further.

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

Electronic Device Detector4 screens
EMF Radiation Detector Reader3 screens

Verdict

The call

The clearest difference is price: EMF Radiation Detector Reader at Free against Electronic Device Detector's $0.99. EMF Radiation Detector Reader also leads on update cadence (every 6 months vs every 45 months) and review sentiment (54% vs 25%). Electronic Device Detector's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support 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

EMF Radiation Detector Reader is free to download; Electronic Device Detector costs $0.99 up front. EMF Radiation Detector Reader sells 2 in-app purchases, starting at $1.99 per 7 days. Electronic Device Detector asks for nothing beyond the download.

UpkeepUpdate frequency

Electronic Device Detector ships an update every 45 months, EMF Radiation Detector Reader every 6 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Electronic Device Detector versus EMF Radiation Detector Reader: the parameters behind the verdict, then further details
ParameterElectronic Device DetectorEMF Radiation Detector Reader
Price$0.99Free — better
Rating—4.5 (5K ratings) — better
Positive reviews25.0% of reviews53.5% of reviews — better
Number of ratings—5K — better
Update frequencyEvery 45 monthsEvery 6 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1615.6 — better
Further details — not scored
Size11 MB20 MB
Age rating4+4+
DeveloperMuhammad AqibRounding Squares BV

Customer experience

Electronic Device Detector

Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

EMF Radiation Detector Reader

All ratings4,966 ratings
Positive87.5%
Neutral4.7%
Negative7.8%
Written reviews385 reviews
Positive53.5%
Neutral8.6%
Negative37.9%

Bugs and requests

Electronic Device Detector

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

None

Electronic Device Detector

No in-app purchases

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 Electronic Device Detector free?
Electronic Device Detector costs $0.99, with no in-app purchases.
Is EMF Radiation Detector Reader free?
EMF Radiation Detector Reader is free to download, with in-app purchases available.
Do Electronic Device Detector or EMF Radiation Detector Reader have ads?
EMF Radiation Detector Reader shows ads; Electronic Device Detector does not.
Which is updated more often, Electronic Device Detector or EMF Radiation Detector Reader?
Electronic Device Detector ships an update every 45 months, and EMF Radiation Detector Reader every 6 months. Most recently, Electronic Device Detector was updated on November 2, 2026 and EMF Radiation Detector Reader on November 3, 2026.

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