Comparison

HEBI Mobile I/O vs EMF Meter

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

Head to head
About

HEBI Mobile I/O

This application acts as a network device, providing analog and digital feedback, along with inertial measurements for controlling custom robots. It integrates with HEBI APIs and tools, allowing programming in various languages and utilizing ARKit for pose estimation.

Highlights
  • Analog and digital input control
  • Inertial measurement data
  • ARKit 6DOF pose estimation
  • Integration with HEBI APIs
  • Network device functionality
  • Remote command sending
Features
Read full description

HEBI Robotics creates components that allow you to create custom robots quickly, and the HEBI APIs enable you to program these robots using your favorite programming language. The HEBI Mobile IO App is another component in this ecosystem; it integrates with HEBI APIs and tools to provide analog and digital inputs that can be used to control these robots. More information about HEBI robotic components can be found at http://hebi.us, and technical documentation for programming robots using these APIs is provided at http://docs.hebi.us. HEBI Mobile IO shows up as a network device that provides analog and digital "feedback" information, similar to the HEBI IO Board, as well as inertial measurements. This feedback can be accessed using the MATLAB, C, C++, and Python APIs for HEBI components, available for download at http://docs.hebi.us. You can also send commands from these APIs to alter the state and configuration of the HEBI Mobile IO app. Additionally, the camera is used in combination with Apple's ARKit technology to provide a full 6DOF pose estimate of the device as it is moved through the world. NOTE: This app is only useful in combination with HEBI APIs and tools, and does not provide utility as a standalone app.

About

EMF Meter

Monitor electromagnetic field levels and Bluetooth exposure with real-time readings and safety zone indicators. Understand signal strength and exposure levels around you for awareness at home, work, or while traveling.

Highlights
  • Real-time EMF readings
  • Bluetooth device scanning
  • Signal strength in dBm
  • Safety zone indicators
  • Visual EMF analytics
  • Dark and light themes
Features
Read full description

EMF Meter helps you monitor electromagnetic field levels and Bluetooth exposure from one simple dashboard. Use your iPhone’s magnetometer to track EMF changes in real time, then scan nearby Bluetooth devices to understand signal strength and exposure levels around you. Track your environment at home, work, or while traveling with clear meters, safety zones, and simple exposure insights. Key Features: Real-Time EMF Meter Live electromagnetic field readings in microteslas (μT) Uses your device magnetometer Auto-calibration for local magnetic baseline Total EMF safety meter with clear status levels Bluetooth EMF Exposure Scan nearby Bluetooth devices View Bluetooth signal strength in dBm See Bluetooth exposure percentage Safety levels: SAFE, CAUTION, UNSAFE Detailed nearby device list Safety Levels SAFE: Low exposure CAUTION: Noticeable exposure UNSAFE: Strong exposure DANGER: Very high EMF levels for magnetic field readings Visual EMF Analytics Glowing animated safety background Radial meter with color-coded zones Lowest, average, and highest session readings Simple exposure tables Clean dark and light themes Perfect For: Monitoring EMF levels at home Checking workspaces and desks Comparing rooms and nearby electronics Reviewing nearby Bluetooth signal exposure Health-conscious users who want simple EMF awareness How It Works: EMF Meter uses your iPhone’s built-in magnetometer to measure electromagnetic field variation around your device. For Bluetooth, the app scans nearby wireless sources and estimates exposure from signal strength. Privacy: All readings are processed on your device. No ads, no subscriptions, and no unnecessary tracking. Note: Phone sensors are useful for awareness and comparison, but they are not a replacement for certified scientific or medical equipment. For professional safety testing, use calibrated instruments and consult qualified experts.

Screenshots

HEBI Mobile I/O2 screens
EMF Meter2 screens

Verdict

The call

The clearest difference is price: HEBI Mobile I/O at Free against EMF Meter's $0.99. EMF Meter's advantage is iOS requirement (13.0 vs 15.6). On review sentiment, update cadence, ads and in-app purchases 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

HEBI Mobile I/O is free to download; EMF Meter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

HEBI Mobile I/O ships an update every 3 months, EMF Meter every 2 months. The most recent releases landed on September 14, 2026 and September 20, 2026 respectively.

Scorecard3 real differences · 7 level
HEBI Mobile I/O versus EMF Meter: the parameters behind the verdict, then further details
ParameterHEBI Mobile I/OEMF Meter
PriceFree — better$0.99
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings6 — better—
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size62 MB58 MB
Age rating4+4+
DeveloperHEBI Robotics, Inc.PPLST Tech

Customer experience

HEBI Mobile I/O

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

EMF Meter

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

HEBI Mobile I/O

No in-app purchases

None

EMF Meter

No in-app purchases

Questions

Is HEBI Mobile I/O free?
HEBI Mobile I/O is free to download, with no in-app purchases.
Is EMF Meter free?
EMF Meter costs $0.99, with no in-app purchases.
Do HEBI Mobile I/O or EMF Meter have ads?
Neither HEBI Mobile I/O nor EMF Meter shows ads.
Which is updated more often, HEBI Mobile I/O or EMF Meter?
HEBI Mobile I/O ships an update every 3 months, and EMF Meter every 2 months. Most recently, HEBI Mobile I/O was updated on September 14, 2026 and EMF Meter on September 20, 2026.

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