Comparison

G vs Magnetic Field Scanner

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

Head to head
About

G

This app analyzes social media data to understand user preferences and market trends. It offers AI-powered suggestions for optimal messaging and allows for one-click publishing to official social media accounts.

Highlights
  • Brand memory system
  • Market audience analysis
  • AI operation assistant
  • Optimal messaging suggestions
  • One-click publishing
Features
Read full description

The Brand Memory System records and analyzes years of social media data, combined with Market Audience Analysis to identify user preferences. The AI Operation Assistant provides optimal messaging suggestions based on brand memory and market data, and the One-Click Publishing feature efficiently delivers brand messages to official social media accounts.

About

Magnetic Field Scanner

This utility app uses your phone's magnetometer to detect unusual magnetic field spikes, which may indicate the presence of hidden electronic devices. It provides real-time alerts, visual graphs, and customizable sensitivity to help you scan your surroundings for potential privacy threats.

Highlights
  • Real-time magnetic field scanning
  • Hidden device alerts with adjustable sensitivity
  • Live visual graph of magnetic signals
  • 3-axis sensor readouts
  • Data history for pattern spotting
  • Offline and private operation
Features
Read full description

Worried someone might be spying on you? Instantly scan for hidden cameras, GPS trackers, and spy bugs using your phone. Spy Detector: EMF Scanner helps you protect your privacy with real-time magnetic field detection and instant alerts. HOW IT WORKS Your phone already has a magnetometer sensor built in — the same one used by compasses. Spy Detector transforms that sensor into a powerful EMF scanner, letting you identify unusual magnetic activity around you. Such magnetic spikes may occur near hidden electronic devices, metal objects, or power sources. FEATURES - Smart EMF scanner: Uses your device’s magnetometer to measure real-time magnetic field strength in microteslas (µT). - Hidden device alerts: Set sensitivity levels and get instant audio or vibration alerts when magnetic readings suddenly spike. - Live visual graph: Watch real-time waveforms of detected signals as you move your phone around. - Customizable sensitivity: Adjust thresholds for different environments (home, car, office, hotel). - 3-axis readouts: View detailed X, Y, Z sensor values for precise analysis. - Data history: Quickly review recent magnetic field changes to spot patterns. - Clean, discreet interface: Dark “matrix-style” visuals that look sleek and reduce glare in low light. - Offline & private: No internet, no tracking. All processing happens locally on your device. HOW TO USE 1. Open the app, tap on "SCAN" to start scanning. 2. Move your phone slowly around suspicious areas (mirrors, walls, smoke detectors, switches). 3. Watch for magnetic spikes on the live graph or listen for alerts. 4. Adjust sensitivity if needed to reduce false signals. 5. Use vibration mode for silent, discreet scanning. PERFECT FOR - Travelers checking hotel rooms or rentals - Anyone concerned about hidden recording devices - Security-minded professionals or journalists - Students and hobbyists exploring EMF fields - Everyday users who value privacy and peace of mind Protect your privacy today. Download Spy Detector: EMF Scanner and take control of your personal space. IMPORTANT NOTE Spy Detector: EMF Scanner uses your device’s built-in magnetometer to detect changes in magnetic fields. While strong spikes may indicate nearby electronic components, magnets, or metal structures, the app cannot guarantee detection of hidden cameras or GPS trackers in every case. Use it as a first-line privacy tool and combine it with visual inspection for best results. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

G4 screens
Magnetic Field Scanner4 screens

Verdict

The call

The clearest difference is rating: G at 5.0 against Magnetic Field Scanner's 4.3. G also leads on update cadence (weekly vs every 2 months) and iOS requirement (13.0 vs 17.6). Magnetic Field Scanner's advantage is ads (none vs shown) and ratings volume (12 vs 3). On price, in-app purchases, monetization model 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. G sells 3 one-off in-app purchases and Magnetic Field Scanner sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

G holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 12 respectively.

UpkeepUpdate frequency

G ships an update weekly, Magnetic Field Scanner every 2 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
G versus Magnetic Field Scanner: the parameters behind the verdict, then further details
ParameterGMagnetic Field Scanner
PriceFreeFree
Rating5.0 (3 ratings) — better4.3 (12 ratings)
Positive reviews100.0% of reviews—
Number of ratings312 — better
Update frequencyWeekly — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size128 MB5 MB
Age rating4+4+
DeveloperGMate, Inc.Hoang Le

Customer experience

G

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Magnetic Field Scanner

All ratings12 ratings
Positive83.3%
Neutral8.3%
Negative8.3%

In-app purchases

3 purchases

G

One-time3
  • G-Mate Premium Plan – 30 Days$0.99
  • G-Mate Premium Plan – Month$1.00
  • G-Mate Premium Plan – 30 Days$699.99
3 purchases

Magnetic Field Scanner

Subscriptions2
  • MagnetoScanner Month Pass$5.991 Month
  • MagnetoScanner Year PAss$29.991 Year
One-time1
  • MagnetoScanner Lifetime Access$39.99

Questions

Is G free?
G is free to download, with in-app purchases available.
Is Magnetic Field Scanner free?
Magnetic Field Scanner is free to download, with in-app purchases available.
Which has better reviews, G or Magnetic Field Scanner?
G is rated higher. G averages 5.0 out of 5 from 3 ratings, while Magnetic Field Scanner averages 4.3 from 12 ratings.
Do G or Magnetic Field Scanner have ads?
G shows ads; Magnetic Field Scanner does not.
Which is updated more often, G or Magnetic Field Scanner?
G ships an update weekly, and Magnetic Field Scanner every 2 months. Most recently, G was updated on November 4, 2026 and Magnetic Field Scanner on October 30, 2026.

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