Comparison

Lexmark ID 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

Lexmark ID

Verify the authenticity of Lexmark supplies by scanning QR codes or barcodes on security labels and retail cartons. Receive instant notifications about the status of your scanned items to ensure you are purchasing genuine products.

Highlights
  • Scan 2D QR codes on security labels
  • Scan barcodes of part serial numbers
  • Instant status notifications
  • Verify genuine Lexmark supplies
  • Check retail carton authenticity
Features
Read full description

Ensure the supplies you are purchasing are genuine Lexmark supply items. Serial numbers and bar codes are being added to supplies — on the retail carton, and security label. Scan the 2D QR code on the security label or the bar code of the part serial number and get notified instantly regarding its status.

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

Lexmark ID1 screens
EMF Radiation Detector Reader3 screens

Verdict

The call

The clearest difference is review sentiment: EMF Radiation Detector Reader at 53% against Lexmark ID's 0%. EMF Radiation Detector Reader also leads on rating (4.5 vs 3.0) and ratings volume (4.7K vs 2). Lexmark ID's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, update cadence, 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. Lexmark ID 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 3.0. That said, the two scores are not equally well evidenced: EMF Radiation Detector Reader has 4.7K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Lexmark ID's written reviews are positive against 53% of EMF Radiation Detector Reader's.

UpkeepUpdate frequency

Lexmark ID ships an update every 5 months, EMF Radiation Detector Reader every 7 months. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

Scorecard6 real differences · 4 level
Lexmark ID versus EMF Radiation Detector Reader: the parameters behind the verdict, then further details
ParameterLexmark IDEMF Radiation Detector Reader
PriceFreeFree
Rating3.0 (2 ratings)4.5 (4.7K ratings) — better
Positive reviews0.0% of reviews53.4% of reviews — better
Number of ratings24.7K — better
Update frequencyEvery 5 months — betterEvery 7 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.115.6 — better
Further details — not scored
Size136 MB20 MB
Age rating4+4+
DeveloperVerify Brand LLCRounding Squares BV

Customer experience

Lexmark ID

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

EMF Radiation Detector Reader

All ratings4,738 ratings
Positive87.4%
Neutral4.8%
Negative7.8%
Written reviews378 reviews
Positive53.4%
Neutral8.7%
Negative37.8%

Bugs and requests

Lexmark ID

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

Lexmark ID

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 Lexmark ID free?
Lexmark ID is free to download, with no in-app purchases.
Is EMF Radiation Detector Reader free?
EMF Radiation Detector Reader is free to download, with in-app purchases available.
Which has better reviews, Lexmark ID or EMF Radiation Detector Reader?
EMF Radiation Detector Reader is rated higher. Lexmark ID averages 3.0 out of 5 from 2 ratings, while EMF Radiation Detector Reader averages 4.5 from 4.7K ratings.
Do Lexmark ID or EMF Radiation Detector Reader have ads?
EMF Radiation Detector Reader shows ads; Lexmark ID does not.
Which is updated more often, Lexmark ID or EMF Radiation Detector Reader?
Lexmark ID ships an update every 5 months, and EMF Radiation Detector Reader every 7 months. Most recently, Lexmark ID was updated on October 5, 2026 and EMF Radiation Detector Reader on October 15, 2026.

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