Comparison

EMF Radiation Detector Reader vs Drone Scanner

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

Head to head
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/

About

Drone Scanner

Transform your device into a drone scanner to track nearby flights in real-time. View detailed flight information, including pilot data and location history, on an interactive map. The app is updated to comply with current EU and US regulations.

Highlights
  • Real-time drone tracking
  • Detailed drone information
  • Interactive flight map
  • Support for Bluetooth and Wi-Fi broadcasts
  • Flying zone highlighting
  • Data export functionality
Features
Read full description

The world's first drone Remote ID scanner made by Dronetag. _____ READ BEFORE DOWNLOADING! Limited access to features on some phones is caused by manufacturers’ restrictions. All iOS phones, for example, prohibit app access to Wi-Fi, so only Bluetooth data transmission will work (if and only the drone has an active Remote ID over Bluetooth). It is not a flaw of our app; we cannot fix this, and we don’t deserve negative reviews for these issues. _____ Transform your phone or tablet into a drone scanner and track all the nearby flights over Direct / Broadcast Remote ID standards. Browse real-time data about drones on a detailed map highlighting specific flying space zones. Download Drone Scanner for free and discover what drones fly above your head. Favourite features: - Discover more about drones flying nearby in real-time - Examine detailed information broadcasted by drones via Bluetooth 4, Bluetooth 5, Wi-Fi Beacon, and Wi-Fi NAN - Browse a detailed map with your location and all nearby aircraft - Check available data about drones, including real-time height, direction, pilot identification, pilot position, operation description, and location history - Various flying zones marked and highlighted on the map - Easy export of collected data - Continuously updated to reflect the latest EU & US regulations All these features you find in Drone Scanner – a free app for tracking drones. The app is developed by Dronetag, manufacturing devices for remote drone identification. How it works: Anyone can quickly identify what drones are flying in the sky nearby. Direct Remote ID is a feature that transmits live flight data via Bluetooth or Wi-Fi to the surrounding area. Drone manufacturers use various technologies to build an identification feature in new drones. Older drone pilots use add-on devices, enabling them to become digitally visible. With hardware on your smartphone, Drone Scanner can receive and read broadcasted data.

Screenshots

EMF Radiation Detector Reader3 screens
Drone Scanner2 screens

Verdict

The call

The clearest difference is rating: EMF Radiation Detector Reader at 4.5 against Drone Scanner's 1.8. EMF Radiation Detector Reader also leads on review sentiment (53% vs 16%) and ratings volume (4.7K vs 145). Drone Scanner's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, 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

Both are free to download. EMF Radiation Detector Reader sells 2 in-app purchases, starting at $1.99 per 7 days. Drone Scanner asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

EMF Radiation Detector Reader holds the better App Store score, 4.5 against 1.8. That said, the two scores are not equally well evidenced: EMF Radiation Detector Reader has 4.7K ratings behind it against 145, so its average is the more settled of the two. Written reviews point the same way: 53% of EMF Radiation Detector Reader's written reviews are positive against 16% of Drone Scanner's.

UpkeepUpdate frequency

EMF Radiation Detector Reader ships an update every 7 months, Drone Scanner every 3 months. The most recent releases landed on October 3, 2026 and September 29, 2026 respectively.

Scorecard7 real differences · 3 level
EMF Radiation Detector Reader versus Drone Scanner: the parameters behind the verdict, then further details
ParameterEMF Radiation Detector ReaderDrone Scanner
PriceFreeFree
Rating4.5 (4.7K ratings) — better1.8 (145 ratings)
Positive reviews52.8% of reviews — better15.9% of reviews
Number of ratings4.7K — better145
Update frequencyEvery 7 monthsEvery 3 months — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size20 MB41 MB
Age rating4+4+
DeveloperRounding Squares BVDronetag

Customer experience

EMF Radiation Detector Reader

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

Drone Scanner

All ratings145 ratings
Positive16.6%
Neutral6.2%
Negative77.2%
Written reviews107 reviews
Positive15.9%
Neutral5.6%
Negative78.5%

User reviews

EMF Radiation Detector Reader

From 4.7K App Store ratings

What we love

  • 👍 Works well around microwave
  • 👍 Consistent results
  • 👍 Useful tool for detecting EMF
  • 👍 Legit EMF detection
  • 👍 Helps find problem areas

Room to improve

  • 🐛 Ads cover reading numbers
  • 🔍 Unclear how to interpret readings
  • ⚠️ Questionable accuracy, only detects magnets
  • 🔍 No explanation of safe/unsafe levels
  • 🐛 Doesn't detect radio frequencies

Drone Scanner

From 145 App Store ratings

What we love

  • 👍 Works as advertised
  • 🚀 Great app for Android
  • 💡 Excellent Remote ID scanner

Room to improve

  • 🐛 Does not work on iOS
  • 🐛 Unable to detect drones
  • 🔒 Privacy concerns
  • 🔒 Collects personal information

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

Drone Scanner

Reported bugs

3 issues
  • App crashes on launch
  • Unable to locate drones in proximity
  • Inaccurate location tracking

Requested features

3 requests
  • Add support for WiFi-based Remote ID
  • Add support for more drone models
  • Allow changing units from metric to imperial

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
None

Drone Scanner

No in-app purchases

Questions

Is EMF Radiation Detector Reader free?
EMF Radiation Detector Reader is free to download, with in-app purchases available.
Is Drone Scanner free?
Drone Scanner is free to download, with no in-app purchases.
Which has better reviews, EMF Radiation Detector Reader or Drone Scanner?
EMF Radiation Detector Reader is rated higher. EMF Radiation Detector Reader averages 4.5 out of 5 from 4.7K ratings, while Drone Scanner averages 1.8 from 145 ratings.
Do EMF Radiation Detector Reader or Drone Scanner have ads?
EMF Radiation Detector Reader shows ads; Drone Scanner does not.
Which is updated more often, EMF Radiation Detector Reader or Drone Scanner?
EMF Radiation Detector Reader ships an update every 7 months, and Drone Scanner every 3 months. Most recently, EMF Radiation Detector Reader was updated on October 3, 2026 and Drone Scanner on September 29, 2026.

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