# VibraUnits

> Converts mechanical vibration analysis units for displacement, velocity, and acceleration. (iPhone/iPad app by Motionics LLC.)

- Source: https://appshunter.io/ios/app/vibraunits/id445231670 (this page in markdown: same URL + `.md`)
- Developer: [Motionics LLC](https://appshunter.io/developer/424498959)
- Category: Education, Utilities
- Price: Free
- Rating: 4.60/5 from 9 App Store ratings · 8 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 8 MB
- Languages: American English, Arabic, Catalan, Czech, Danish, Dutch, Finnish, French (France), German (Germany), Greek and 21 more
- Released: 2011-06-25
- Data updated: 2026-08-26
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/vibraunits/id445231670/reviews.md

## What is VibraUnits?

VibraUnits converts amplitudes of the most commonly used units in mechanical vibration analysis. 
The vibration equations used for changing units between displacement-velocity-acceleration only apply to vibration occurring at a discrete frequency (sinusoidal waves). 

Features:
- Conversion between velocity, acceleration and displacement
- Frequency conversion between Hz and CPM
- Displacement conversion between mils and microns (RMS, 0-peak & peak-peak)
- Velocity conversion between inch/s and mm/s (RMS, 0-peak & peak-peak)
- Acceleration conversion between G's and m/s^2 (RMS, 0-peak & peak-peak)


Disclaimer: 
This app is intended for educational purposes, although the calculations were made with great care, it may contain errors or inaccuracies. Using the results of the calculations is the responsibility of the user.

## Key features

- Velocity, acceleration, displacement conversion
- Frequency conversion (Hz to CPM)
- Displacement conversion (mils to microns)
- Velocity conversion (inch/s to mm/s)
- Acceleration conversion (G's to m/s^2)

## Recent user reviews (8 of 8)

All indexed reviews: https://appshunter.io/ios/app/vibraunits/id445231670/reviews.md

### 2/5 — Works but limited

*2023-05-23*

Good for the US market, but the rest of the world uses metric. That’s Mm/s, mm/s2 or m/s and m/s2 or mm displacement. Update!

### 5/5 — A simple and useful

*2020-11-12*

It’s designed very simple and works great. Love it

### 5/5 — Handy calculator

*2018-10-20*

Saves you the hand calculations.  Good for intuitive learning.

### 5/5 — Great calibration tool

*2018-10-14*

This app is extremely helpful for calibrating and checking signal response of vibration systems, especially around filter corners, etc.

### 5/5 — Awesome!

*2017-04-28*

Simplifies all calculation work I used to do on a spreadsheet, will definitely share with co-workers.

### 5/5 — Excellent On The Go Converter

*2013-05-16*

I've always looked for a good mobile vibe converter to use in a pinch when you can't quite remember all your conversions, but the majority I have run across either lacked the units I wanted or were too clunky to be used quickly.  Needless to say, my search ended with this app.  Thanks!

### 5/5 — Works as it Should

*2013-01-27*

This App is simple and Useful. Great addition to a Vibration Engineers toolbox

### 5/5 — Great product

*2013-01-23*

Does exactly what it's supposed to do.

## Frequently asked questions about VibraUnits

### What units does VibraUnits convert?

VibraUnits converts between displacement, velocity, and acceleration. It also handles frequency conversions between Hz and CPM, and various amplitude scales like RMS, 0-peak, and peak-peak.

### What is the learning methodology of VibraUnits?

VibraUnits is designed for practical application of vibration analysis concepts. It allows users to directly convert between common units, aiding in understanding and applying theoretical knowledge.

### How does VibraUnits track progress?

VibraUnits does not have a progress tracking feature. It functions as a utility tool for performing unit conversions related to mechanical vibration analysis.

### Does VibraUnits offer certifications?

No, VibraUnits does not offer any certifications. It is an educational tool for unit conversion in vibration analysis.

### What is the age rating for VibraUnits?

VibraUnits has an age rating of 4+, making it suitable for a wide range of users, including younger learners.

### On which devices can VibraUnits be used?

VibraUnits is available for iPhone, iPad, and iPod devices.

### When was VibraUnits last updated?

The latest version of VibraUnits was released on October 30, 2015, with the initial release dating back to June 25, 2011.

### Does VibraUnits have ads?

No, VibraUnits does not contain advertisements.

## Version history (last 5 releases)

### 1.23 — 2015-10-30

This app has been updated by Apple to display the Apple Watch app icon.

- Fixed crash caused by using email function without setting up an account
- Minor bug fix

### 1.22 — 2014-12-31

- Minor change in the splash screen

### 1.21 — 2014-12-29

- iOS 8 update
- minor fixes

### 1.2 — 2013-03-21

- minor bug fixes
- more technical info about vibration analysis and monitoring using iPad

### 1.1 — 2011-08-29

- Now available for iPhone and iPod Touch too (Universal App) 
- Basic equations and definitions for periodic signals
- Conversion equations for Acceleration/Velocity/Displacement 
- Links to other Apps by Motionics
- Buttons for "Feedbacks" and "Tell A Friend"

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## More apps by Motionics LLC

- [iWindTurbine](https://appshunter.io/ios/app/iwindturbine/id424498956)
- [iRotorBalance](https://appshunter.io/ios/app/irotorbalance/id430978753)
- [iAlignCalc](https://appshunter.io/ios/app/ialigncalc/id441151338)
- [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.*