# iHarmonizer vs Plant Identifier

The clearest difference is update cadence: Plant Identifier at every 4 days against iHarmonizer's every 3 months. iHarmonizer's advantage is iOS requirement (13.0 vs 17.0). 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 Plant Identifier sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

iHarmonizer ships an update every 3 months, Plant Identifier every 4 days. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | iHarmonizer | Plant Identifier |
| --- | --- | --- |
| 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 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 98 MB | 18 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Manufacturing Laboratories, Inc.](https://appshunter.io/developer/488536257) | [JOSHUA ERIC BISHOP](https://appshunter.io/developer/1812726569) |

## 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 |


### Plant Identifier

[App page](https://appshunter.io/ios/app/plant-identifier-leaflet/id6745528164)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Leaflet Pro (Weekly) | $4.99 | per 7 days |
| Leaflet Pro (Annual) | $24.99 | per year |


## Frequently asked questions

### Is iHarmonizer free?

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

### Is Plant Identifier free?

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

### Do iHarmonizer or Plant Identifier have ads?

Neither iHarmonizer nor Plant Identifier shows ads.

### Which is updated more often, iHarmonizer or Plant Identifier?

iHarmonizer ships an update every 3 months, and Plant Identifier every 4 days. Most recently, iHarmonizer was updated on October 16, 2026 and Plant Identifier on October 17, 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.*