# iHarmonizer

> Machining noise analysis tool for chatter detection and spindle speed optimization. (iPhone/iPad app by Manufacturing Laboratories, Inc..)

- Source: https://appshunter.io/ios/app/iharmonizer/id488536254 (this page in markdown: same URL + `.md`)
- Developer: [Manufacturing Laboratories, Inc.](https://appshunter.io/developer/488536257)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 17+
- Requires: iOS 13.0 · 98 MB
- Released: 2012-02-22
- Data updated: 2026-06-05
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/iharmonizer/id488536254/reviews.md

## What is iHarmonizer?

IHarmonizer is a free application for recording machining noise, saving the file, and sending it to MLI for a free evaluation (send to harmonizer@mfg-labs.com). 

If the user desires he may do an "in-app" purchase to do the evaluation immediately and on site.  The program detects chatter and suggests alternate spindles speeds to possibly eliminate the chatter.  It also will terminate and indicate if there is no stable spindle speed to be found.  Please contact harmonizer@mfg-labs.com for any questions.

## Key features

- Record machining noise
- Save audio files
- Free MLI evaluation
- In-app purchase for immediate analysis
- Chatter detection
- Suggests alternate spindle speeds
- Indicates no stable spindle speed

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Regulations 50 Pack | $99.99 | one-time |
| Regulations 200 Pack | $299.99 | one-time |
| Regulations 10 Pack | $24.99 | one-time |
| Regulations 500 Pack | $299.99 | one-time |
| Regulations 100 Pack | $99.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/iharmonizer/id488536254/reviews.md

### 1/5 — Not free

*2012-06-14*

Free to download but you have to buy the analyser

### 1/5 — Must spend $1 with each use

*2012-03-15*

You could easily spend $100 in just a month using this not to mention its not accurate at all save your dollar

## Frequently asked questions about iHarmonizer

### What is iHarmonizer used for?

iHarmonizer is used to record machining noise, save the audio files, and send them to MLI for a free evaluation. It can also detect chatter and suggest alternative spindle speeds to eliminate it.

### How does iHarmonizer detect chatter?

The program analyzes recorded machining noise to detect chatter. If chatter is found, it suggests alternate spindle speeds that may help eliminate it.

### Can I get an immediate evaluation with iHarmonizer?

Yes, you can perform an "in-app" purchase within iHarmonizer to get an immediate evaluation on-site. This allows for quicker analysis without sending files to MLI.

### Is iHarmonizer free to use?

The core functionality of iHarmonizer, including recording and sending files for free evaluation, is free. An in-app purchase is required for immediate, on-site evaluations.

### What devices does iHarmonizer support?

iHarmonizer is available for iPhone, iPad, and iPod devices. It is designed for Apple's mobile operating system.

### How often is iHarmonizer updated?

The latest version of iHarmonizer is 2.1.4, and it was last updated on August 6, 2025. This indicates a recent update, suggesting ongoing development and support.

### What is the age rating for iHarmonizer?

iHarmonizer has an age rating of 17+. This is likely due to the professional nature of its industrial application.

### Who developed iHarmonizer?

iHarmonizer was developed by Manufacturing Laboratories, Inc. They are the creators of this specialized machining analysis tool.

## Version history (last 5 releases)

### 2.1.4 — 2025-08-06

Bug fixes

### 2.1.3 — 2025-01-15

Bug fixes

### 2.1.2 — 2024-10-02

Bug fixes

### 2.1.1 — 2024-08-13

Bug fixes and preservation of current spindle speed

### 2.1.0 — 2024-07-16

Bug fixes and preservation of current spindle speed

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## Related topics

[iharmonizer](https://appshunter.io/ios/topics/iharmonizer)

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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 2026-06-05.*