# iHarmonizer vs Gnossy

The clearest difference is update cadence: Gnossy at every 5 days against iHarmonizer's every 3 months. iHarmonizer's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. iHarmonizer sells 5 one-off in-app purchases and Gnossy sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

iHarmonizer ships an update every 3 months, Gnossy every 5 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | iHarmonizer | Gnossy |
| --- | --- | --- |
| 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 | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 98 MB | 75 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Manufacturing Laboratories, Inc.](https://appshunter.io/developer/488536257) | [Giuliano Skara](https://appshunter.io/developer/1863081205) |

## 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 |


### Gnossy

[App page](https://appshunter.io/ios/app/gnossy/id6756816637)

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Monats Abonnement | $9.99 | per month |
| 3 Monats Abonnement | $29.99 | per 3 months |
| 6 Monats Abonnement | $59.99 | per 6 months |


## Frequently asked questions

### Is iHarmonizer free?

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

### Is Gnossy free?

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

### Do iHarmonizer or Gnossy have ads?

Neither iHarmonizer nor Gnossy shows ads.

### Which is updated more often, iHarmonizer or Gnossy?

iHarmonizer ships an update every 3 months, and Gnossy every 5 days. Most recently, iHarmonizer was updated on November 1, 2026 and Gnossy on October 30, 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.*