# iHarmonizer vs Grieg Connect

The clearest difference is in-app purchases: Grieg Connect at none against iHarmonizer's 5. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. iHarmonizer sells 5 one-off in-app purchases. Grieg Connect asks for nothing beyond the download.

iHarmonizer ships an update every 3 months, Grieg Connect every 5 months. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | iHarmonizer | Grieg Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iharmonizer/id488536254/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 98 MB | 47 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Manufacturing Laboratories, Inc.](https://appshunter.io/developer/488536257) | [Grieg Connect AS](https://appshunter.io/developer/655577330) |

## What reviewers say

### iHarmonizer

[App page](https://appshunter.io/ios/app/iharmonizer/id488536254)

Record machining noise, save files, and send for free evaluation. An in-app purchase allows for immediate, on-site analysis to detect chatter and suggest optimal spindle speeds.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases (5)**

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


### Grieg Connect

[App page](https://appshunter.io/ios/app/grieg-connect-security/id6443867783)

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is iHarmonizer free?

iHarmonizer is free to download, with in-app purchases available.

### Is Grieg Connect free?

Grieg Connect is free to download, with no in-app purchases.

### Do iHarmonizer or Grieg Connect have ads?

Neither iHarmonizer nor Grieg Connect shows ads.

### Which is updated more often, iHarmonizer or Grieg Connect?

iHarmonizer ships an update every 3 months, and Grieg Connect every 5 months. Most recently, iHarmonizer was updated on October 16, 2026 and Grieg Connect on October 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*