Comparison

GMCMap vs EMF Detector

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

Head to head
About

GMCMap

This app provides a real-time radiation map of the world, displaying current radiation levels from monitoring stations globally. It features an interactive map, historical data, and trend analysis for comprehensive environmental vigilance.

Highlights
  • Real-time radiation data
  • Global coverage map
  • Interactive map interface
  • Historical data and trends
  • Mobile convenience
Read full description

GMCMap, is your go-to mobile app for providing users with a real-time radiation world map. Designed to offer a comprehensive and up-to-date view of global radiation levels, this user-friendly and accessible tool is an essential resource for individuals, organizations, and authorities concerned with monitoring and understanding radiation patterns across the world. Key Features: Mobile Convenience: Access GMCMap seamlessly on your mobile device. Stay updated with real-time radiation data, whether you're at home or on the go. Real-Time Data: GMCMap harnesses the power of advanced technology and data sources to present real-time radiation measurements from various monitoring stations worldwide. Users can access the latest information, enabling them to respond swiftly to any potential radiation-related incidents or track ongoing situations. Global Coverage: With extensive coverage encompassing regions from densely populated urban centers to remote locations, the platform offers an accurate portrayal of radiation levels on a global scale. It allows users to visualize the distribution of radiation and assess potential risks at different locations. Interactive Map Interface: The interactive map interface of GMCMap allows users to explore radiation data effortlessly. Users can zoom in to view specific areas in greater detail or zoom out for a broader perspective of the global radiation situation. By clicking on individual monitoring points, users can access more detailed information about the specific radiation levels at that location. Radiation Trends and Analysis: GMCMap doesn't only provide instantaneous radiation levels; it also offers historical data and trend analysis, allowing users to track long-term changes and fluctuations in radiation levels. This feature can be particularly valuable for researchers, policymakers, and environmental agencies studying radiation patterns and their potential impact. GMCMap is an indispensable tool for radiation monitoring, research, and environmental vigilance. Download the app now and empower yourself to make informed decisions, contribute to a safer world, and protect what matters most.

About

EMF Detector

Transform your iPhone into an EMF detector to monitor electromagnetic fields. Identify radiation levels in various environments to assess safety at home, work, or in public spaces. Gain insights to make informed decisions about your surroundings.

Highlights
  • EMF monitoring
  • Electromagnetic field detection
  • Radiation level measurement
  • Environmental safety assessment
  • Real-time EMF readings
Features
Read full description

Monitor your surroundings with precision using our EMF Monitoring app, designed exclusively for iOS. This innovative application transforms your iPhone into a powerful EMF detector, enabling you to identify electromagnetic fields in various environments. As you move through different areas, the app continuously measures EMF levels, allowing you to easily pinpoint zones of high and low radiation. Whether you're concerned about safety at home, in the workplace, or in public areas, EMF Monitoring provides the insights you need to assess environmental safety and make informed decisions about your surroundings. This app is using the standard Apple Terms of Use (EULA) https://www.apple.com/legal/ internet-services/itunes/dev/stdeula/

Screenshots

GMCMap4 screens
EMF Detector3 screens

Verdict

The call

The clearest difference is review sentiment: GMCMap at 70% against EMF Detector's 25%. GMCMap also leads on in-app purchases (none vs 3). EMF Detector's advantage is update cadence (every 2 weeks vs every 5 months) and rating (4.3 vs 4.1). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. EMF Detector sells 2 in-app purchases, starting at $4.99 per month. GMCMap asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

EMF Detector holds the better App Store score, 4.3 against 4.1. That said, the two scores are not equally well evidenced: EMF Detector has 319 ratings behind it against 19, so its average is the more settled of the two. Written reviews complicate that: 70% of GMCMap's written reviews are positive against 25% of EMF Detector's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

GMCMap ships an update every 5 months, EMF Detector every 2 weeks. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

Scorecard7 real differences · 3 level
GMCMap versus EMF Detector: the parameters behind the verdict, then further details
ParameterGMCMapEMF Detector
PriceFreeFree
Rating4.1 (19 ratings)4.3 (319 ratings) — better
Positive reviews70.0% of reviews — better25.0% of reviews
Number of ratings19319 — better
Update frequencyEvery 5 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size27 MB11 MB
Age rating4+4+
DeveloperGQ Electronics LLC新雨 李

Customer experience

GMCMap

All ratings19 ratings
Positive78.9%
Neutral0.0%
Negative21.1%
Written reviews10 reviews
Positive70.0%
Neutral0.0%
Negative30.0%

EMF Detector

All ratings319 ratings
Positive83.4%
Neutral4.1%
Negative12.5%
Written reviews16 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

None

GMCMap

No in-app purchases

2 purchases

EMF Detector

Subscriptions1
  • unlimited features2 variants$4.991 Month
One-time1
  • unlimited features$14.99

Questions

Is GMCMap free?
GMCMap is free to download, with no in-app purchases.
Is EMF Detector free?
EMF Detector is free to download, with in-app purchases available.
Which has better reviews, GMCMap or EMF Detector?
EMF Detector is rated higher. GMCMap averages 4.1 out of 5 from 19 ratings, while EMF Detector averages 4.3 from 319 ratings.
Do GMCMap or EMF Detector have ads?
Neither GMCMap nor EMF Detector shows ads.
Which is updated more often, GMCMap or EMF Detector?
GMCMap ships an update every 5 months, and EMF Detector every 2 weeks. Most recently, GMCMap was updated on September 22, 2026 and EMF Detector on September 21, 2026.

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