Comparison

TeslaVision EMF Detector vs GPF Bubble Level

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

Head to head
About

TeslaVision EMF Detector

Detect, measure, and visualize ambient electromagnetic fields in real-time. This professional-grade tool offers detailed analysis, data export, and customizable settings for monitoring your electromagnetic environment.

Highlights
  • Real-time EMF measurement
  • 2D and 3D EMF visualization
  • Raw EMF data export
  • Customizable EMF calibration
  • Adjustable EMF sensitivity
  • Record and analyze EMF sessions
Features
Currently charting
Read full description

Experience unmatched EMF radiation detection with © TeslaVision. We are confident you will not find a better EMF meter on the App Store. © TeslaVision is a professional, easy-to-use, and powerful EMF radiation detection meter.  © TeslaVision enables you to detect, measure, and visualize the ambient electromagnetic field level in real-time. Furthermore,  © TeslaVision enables you to effortlessly detect, monitor, record, and export your overall level of EMF exposure.   © TeslaVision is the perfect app to detect, monitor, and visualize your electromagnetic environment. Key Features: • High-quality, professional grade software • Real-time EMF measurement (0-3000+ µT)  • 100Hz EMF Data resolution capability • Supports raw, unfiltered EMF data for advanced analysis • Export raw recorded EMF session data • 2D and 3D EMF visualization • Real-time 3D plotting of EMF orientation • Metrics for minimum, maximum, and average EMF exposure • Raw, calibrated, and scaled EMF data • Color coded representation of EMF strength • Customizable EMF calibration • Adjustable EMF sensitivity • Record, analyze, and share EMF session data • Intuitive, professional, and easy-to-use design • Comprehensive help section • Easy access to customer support • Lifetime free updates Frustration Free • No ads • No subscriptions • No in-app purchases • No gimmicks • World-class customer support If you have any questions about this app, please contact us at: JedaSoftwareSystemsHelp@gmail.com

About

GPF Bubble Level

Read full description

GPF Bubble Level is a minimal, high-contrast spirit level app for iPhone, built around real-time accelerometer data. It uses Core Motion to read device gravity and translates movement into a smooth on-screen bubble inside a circular level grid. The interface is intentionally clean: black background, white elements, Menlo typography, and a compact layout designed for quick visual alignment in everyday use. Key features: - Real-time level detection using accelerometer/device motion - Smooth bubble movement with light filtering for stability - Tilt angle readout in degrees - Live X/Y gravity values for reference - Dedicated Info screen with app icon, title, and version/build footer - Custom monochrome app icon (white on black) consistent with the app style Design goals: - Fast glanceability - No clutter - Strong visual contrast for indoor/outdoor visibility - Coherent monochrome identity across UI and iconography Technical notes: - SwiftUI-based UI - CoreMotion integration via observable motion manager - Motion privacy usage description configured - Build/version shown directly from bundle metadata This app is ideal for quick leveling checks on surfaces, shelves, frames, and small DIY tasks, with a focused UX that prioritizes readability and responsiveness.

Screenshots

TeslaVision EMF Detector4 screens
GPF Bubble Level3 screens

Verdict

The call

The clearest difference is price: GPF Bubble Level at Free against TeslaVision EMF Detector's $4.99. TeslaVision EMF Detector's advantage is chart position (#179 vs unranked). On update cadence, ads, in-app purchases 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

GPF Bubble Level is free to download; TeslaVision EMF Detector costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

TeslaVision EMF Detector ships an update every 13 months, GPF Bubble Level every 8 months. The most recent releases landed on November 3, 2026 and November 13, 2026 respectively.

Scorecard2 real differences · 9 level
TeslaVision EMF Detector versus GPF Bubble Level: the parameters behind the verdict, then further details
ParameterTeslaVision EMF DetectorGPF Bubble Level
Price$4.99Free — better
Rating4.4 (10 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings10 — better—
Update frequencyEvery 13 monthsEvery 8 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
Best chart rank#179 — better—
DevicesiPhoneiPhone
Requires iOS18.0 — better18.6
Further details — not scored
Size2 MB0 MB
Age rating4+4+
DeveloperMichael WeberGian Paolo Fontani

In-app purchases

None

TeslaVision EMF Detector

No in-app purchases

None

GPF Bubble Level

No in-app purchases

Questions

Is TeslaVision EMF Detector free?
TeslaVision EMF Detector costs $4.99, with no in-app purchases.
Is GPF Bubble Level free?
GPF Bubble Level is free to download, with no in-app purchases.
Do TeslaVision EMF Detector or GPF Bubble Level have ads?
Neither TeslaVision EMF Detector nor GPF Bubble Level shows ads.
Which is updated more often, TeslaVision EMF Detector or GPF Bubble Level?
TeslaVision EMF Detector ships an update every 13 months, and GPF Bubble Level every 8 months. Most recently, TeslaVision EMF Detector was updated on November 3, 2026 and GPF Bubble Level on November 13, 2026.

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