# iRotorBalance

> Calculator for balancing rotating machinery using vibration data. (iPhone/iPad app by Motionics LLC.)

- Source: https://appshunter.io/ios/app/irotorbalance/id430978753 (this page in markdown: same URL + `.md`)
- Developer: [Motionics LLC](https://appshunter.io/developer/424498959)
- Category: Utilities, Productivity
- Price: $4.99
- Rating: 3.00/5 from 2 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.1 · 16 MB
- Languages: American English
- Released: 2011-04-15
- Data updated: 2026-08-26
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/irotorbalance/id430978753/reviews.md

## What is iRotorBalance?

iRotorBalance is a educational and technical calculator for balancing of rotating machinery. The application calculates the correction balancing weight and its angular position given the amplitude and the phase of the measured vibration.

Features:
- Single-Plane Balancing Technique: Vector Method 
- Single-Plane Balancing Technique: 4-Runs Method
- Two-Plane Balancing Technique: Influence Coefficient Method
- Angular Mass Distribution Calculation
- Permissible Residual Unbalance Determination
- e-mail the results as a report

Disclaimer: Although the calculations done by this application were made with great care, it may contain error or inaccuracies. Using the results of the calculations is the responsibility of the user.

## Key features

- Single-Plane Balancing (Vector Method)
- Single-Plane Balancing (4-Runs Method)
- Two-Plane Balancing (Influence Coefficient Method)
- Angular Mass Distribution Calculation
- Permissible Residual Unbalance Determination
- Email results as a report

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/irotorbalance/id430978753/reviews.md

### 5/5 — Propeller balancing

*2019-10-09*

I am an A&P performing propeller balancing. I recently balanced a Navion that only has 4 fixed positions for adding weights. I would not have been able to do this without this application. It is an awesome tool

### 5/5 — Definitely I recommend this App!

*2012-03-21*

Great handy tool for rotor balancing.. If you know what the rotor balancing is, you MUST have this App.. I love the way they designed this App.. very practical and useful. I use it pretty often at the field..
Thanksssssss

### 5/5 — Brilliant app!

*2011-12-16*

I work as a field technician doing vibration analysis and balancing. I balance using the vector method but, until now, I would have to plot my vectors with a pen on graph paper and calculate my balancing mass by hand. This app is a real time saver! 

I would recommend this app only to persons who are already familiar with the vector method of single plane and influence coeffecient methods of rotor/fan balancing.

### 5/5 — Good

*2011-10-21*

Très bonne très utile merci

## Frequently asked questions about iRotorBalance

### What is iRotorBalance used for?

iRotorBalance is a technical calculator designed for balancing rotating machinery. It helps determine the necessary correction weight and its angular position by analyzing measured vibration amplitude and phase.

### What balancing methods does iRotorBalance support?

iRotorBalance supports several methods, including the Single-Plane Balancing Vector Method, the Single-Plane Balancing 4-Runs Method, and the Two-Plane Balancing Influence Coefficient Method.

### Can I share the results from iRotorBalance?

Yes, iRotorBalance allows you to e-mail the calculation results as a report. This is useful for documentation and sharing with colleagues or clients.

### What is the price of iRotorBalance?

iRotorBalance is a paid application, available for $4.99. This one-time purchase grants you access to all its features.

### How often is iRotorBalance updated?

The latest version of iRotorBalance is 1.5, which was last updated on September 12, 2015. Users can expect a stable, albeit older, version of the software.

### What devices are compatible with iRotorBalance?

iRotorBalance is compatible with iPhone, iPad, and iPod devices. It is designed for iOS operating systems.

### Is iRotorBalance suitable for all ages?

iRotorBalance has an age rating of 4+, indicating it is generally suitable for younger users. However, its technical nature makes it most relevant for adults and older students.

### Does iRotorBalance have ads?

No, iRotorBalance does not contain advertisements. As a paid application, it provides an ad-free experience for its users.

## Version history (last 5 releases)

### 1.5 — 2015-09-12

This update from Apple will improve the functionality of this app. No new features are included.

- App copyright information updated
- Other minor improvements

### 1.4 — 2015-07-01

- Fixed minor calculation error in Single-Plane Vector Method
- Fixed crash caused by using email function without setting up an account

### 1.3 — 2015-03-30

- Fixed Two-Plane Balancing crash in iPhone 
- Fixed Minor Computation Error in Two-Plane Balancing
- Added Support for iPhone 4'' screen and bigger

### 1.2 — 2012-12-09

-Minor crash fixed

### 1.1 — 2011-09-12

- Now available for iPhone and iPod Touch too
- New design for the main page interface
- Screenshot button to save the results and graphs to the Photo Album

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## More apps by Motionics LLC

- [iWindTurbine](https://appshunter.io/ios/app/iwindturbine/id424498956)
- [iAlignCalc](https://appshunter.io/ios/app/ialigncalc/id441151338)
- [VibraUnits](https://appshunter.io/ios/app/vibraunits/id445231670)
- [REBvibe](https://appshunter.io/ios/app/rebvibe/id445515440)
- [VibeSpectra](https://appshunter.io/ios/app/vibespectra/id448014799)

All apps by Motionics LLC: https://appshunter.io/developer/424498959

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*