Comparison

iRotorBalancer vs EMF Field Detector RF Scanner

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

Head to head
About

iRotorBalancer

This technical tool assists in balancing rotating machinery using single or two-plane methods. It connects to external hardware to measure vibration amplitude and phase, then calculates necessary correction weights and their positions. Reports can be generated and emailed.

Highlights
  • Single-plane balancing (Vector & Four-Runs methods)
  • Two-plane balancing (Influence Coefficients)
  • Real-time waveform and FFT spectrum display
  • Automatic 1X peak amplitude and phase selection
  • Polar plot and weight location graphics
  • Report generation with plots, data, and images
Features
Read full description

iRotorBalancer is a technical tool for balancing of rotating machinery in single-plane and two-planes. The iPad application connects to an external hardware to collect the vibration Amplitude and Phase with an accelerometer and Optical Sensor, and calculates the correction balancing weights and its angular positions. NOTE: This app works with an external hardware (contact www.motionics.com for more information) FEATURES: - Single-Plane balancing using the Vector-Method (Amplitude & Phase Measurements) - Single-Plane balancing using the Four-Runs-Method (Amplitude Measurement) - Two-Planes Balancing using the Influence Coefficients Method (Amplitude & Phase Measurements) - Displays Real-Time Waveform signal - Displays Real-Time Spectrum of the Vibration Signal (FFT) - Automatic Select the 1X Peak amplitude and Phase - Polar Plot and Graphic location of the trial and correction weights - Handy calculator to estimate the Trial Weights - Angular mass distribution calculator - Permissible Residual Imbalance determination - Calculate weight removal (drilling) - Generate complete Report with Spectrum, Polar Plots, Balancing Data, Pictures from Camera or Library, Map location, Notes and Signature. - Email pdf report - Accelerometer Calibration Option - Complete help and instruction

About

EMF Field Detector RF Scanner

Detect electromagnetic fields (EMF) using your device's sensors. Get alerted to high magnetic fields and potential radiation sources in your home. Useful for identifying hidden emitters and understanding your environment.

Highlights
  • Detects electromagnetic fields (EMF)
  • Warns of high magnetic fields with beeps
  • Measures magnetic force on three axes
  • Records readings with time and date stamps
  • Stores up to 100 records
  • Sends measurements via email
Read full description

Turn your iPhone into a powerful EMF detector and magnetic field scanner. Detect electromagnetic fields (EMF) around you instantly using the built-in sensor already inside your device — no expensive equipment required. Whether you want to monitor electromagnetic radiation in your home, locate hidden magnetic sources, or even explore paranormal activity, this app gives you a simple and exciting way to measure the invisible world around you. Use the app to scan bedrooms, walls, electrical appliances, Wi-Fi zones, sockets, microwaves, wireless devices, and more. Discover areas with unusually high magnetic activity and receive an instant warning beep when strong EMF levels are detected. Many users also enjoy using the app during ghost hunts and paranormal investigations, as sudden magnetic fluctuations are often associated with supernatural activity. NEW: Experience EMF detection in Augmented Reality. Visualize electromagnetic fields in Augmented Reality to better understand how EMFs spread throughout your home, office, or workspace. The app allows you to see a figurative representation of magnetic activity around you, helping you identify high-radiation zones and understand how far electromagnetic fields may reach in real-world environments. Explore EMFs in a more immersive and intuitive way by combining real-time detection with AR visualization technology. Transform your iPhone into a digital EMF Meter, Teslameter, or electromagnetic field tester using the internal compass hardware. View live magnetic field readings in real time and monitor changes on all three axes (X, Y, Z). Scientists, engineers, students, teachers, paranormal investigators, and curious explorers use EMF detectors to measure magnetic activity in everyday environments. Why use this app? • Detect high electromagnetic field zones around you • Monitor EMF levels near beds, appliances, or workspaces • Receive warning alerts when strong magnetic radiation is detected • Track and store measurements with time and date stamps • Investigate unusual magnetic fluctuations during ghost hunting sessions • Find metallic objects, pipes, or hidden sources behind walls • Explore the invisible electromagnetic world around you Features: • Real-time EMF and magnetic field detection • Warning beep near strong radiation sources • Measures magnetic force on X, Y, and Z axes • Magnetic readings displayed in microteslas (µT) • Save up to 100 EMF records • Record events with exact date & time • Export and send measurements by email • Easy-to-use digital display interface Electromagnetic radiation may come from electrical wiring, appliances, wireless devices, cordless phones, Wi-Fi equipment, sockets, and other electronic sources in your environment. Tips: For best accuracy, calibrate your iPhone by moving it in a figure-8 motion before use. Important: This app requires an iPhone with compass hardware and will not work on iPod Touch devices. Disclaimer: This app is intended for entertainment and informational purposes only. It uses the iPhone magnetometer sensor to detect magnetic field variations near ferromagnetic objects and electromagnetic sources. Download now and start discovering the hidden electromagnetic activity around you.

Screenshots

EMF Field Detector RF Scanner4 screens

Verdict

The call

The clearest difference is price: EMF Field Detector RF Scanner at $4.99 against iRotorBalancer's $799.99. EMF Field Detector RF Scanner also leads on ratings volume (5.5K vs 1) and update cadence (every 3 weeks vs every 2 months). iRotorBalancer's advantage is rating (5.0 vs 4.5) and ads (none vs shown). On 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

iRotorBalancer costs $799.99 and EMF Field Detector RF Scanner $4.99 up front. iRotorBalancer sells 2 one-off in-app purchases and EMF Field Detector RF Scanner sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

iRotorBalancer holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: EMF Field Detector RF Scanner has 5.5K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

iRotorBalancer ships an update every 2 months, EMF Field Detector RF Scanner every 3 weeks. The most recent releases landed on June 24, 2026 and September 24, 2026 respectively.

Scorecard8 real differences · 2 level
iRotorBalancer versus EMF Field Detector RF Scanner: the parameters behind the verdict, then further details
ParameteriRotorBalancerEMF Field Detector RF Scanner
Price$799.99$4.99 — better
Rating5.0 (1 ratings) — better4.5 (5.5K ratings)
Positive reviews—84.1% of reviews
Number of ratings15.5K — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationPaidFree with in-app purchases — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS11.0 — better15.6
Further details — not scored
Size18 MB56 MB
Age rating17+4+
DeveloperMotionics, LLCJorge Gregorio Martin Bello

Customer experience

iRotorBalancer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

EMF Field Detector RF Scanner

All ratings5,535 ratings
Positive90.4%
Neutral5.4%
Negative4.2%
Written reviews580 reviews
Positive84.1%
Neutral5.9%
Negative10.0%

Bugs and requests

iRotorBalancer

Not enough reviews yet to summarise bugs or requests.

EMF Field Detector RF Scanner

Reported bugs

2 issues
  • App freezes or stops working after updates
  • Readings not always accurate or reliable

Requested features

3 requests
  • Ability to export data
  • More detailed explanations and guidance
  • Compatibility with other EMF measurement devices

In-app purchases

2 purchases

iRotorBalancer

One-time2
  • Custom Report Header and Logo$49.99
  • Two-Plane Overhung Rotor Balancing$249.99
2 purchases

EMF Field Detector RF Scanner

One-time2
  • Premium Pack$4.99
  • Special Offer$4.99

Questions

Is iRotorBalancer free?
iRotorBalancer costs $799.99, and also offers in-app purchases.
Is EMF Field Detector RF Scanner free?
EMF Field Detector RF Scanner costs $4.99, and also offers in-app purchases.
Which has better reviews, iRotorBalancer or EMF Field Detector RF Scanner?
iRotorBalancer is rated higher. iRotorBalancer averages 5.0 out of 5 from 1 ratings, while EMF Field Detector RF Scanner averages 4.5 from 5.5K ratings.
Do iRotorBalancer or EMF Field Detector RF Scanner have ads?
EMF Field Detector RF Scanner shows ads; iRotorBalancer does not.
Which is updated more often, iRotorBalancer or EMF Field Detector RF Scanner?
iRotorBalancer ships an update every 2 months, and EMF Field Detector RF Scanner every 3 weeks. Most recently, iRotorBalancer was updated on June 24, 2026 and EMF Field Detector RF Scanner on September 24, 2026.

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