# Machining Advisor Pro vs iMI

The clearest difference is rating: iMI at 5.0 against Machining Advisor Pro's 4.0. iMI also leads on ads (none vs shown) and update cadence (every 4 days vs every 6 weeks). Machining Advisor Pro's advantage is in-app purchases (none vs 5) and ratings volume (162 vs 3). On price and device support there is nothing between them.

Both are free to download. iMI sells 5 in-app purchases, starting at $9.99 per month. Machining Advisor Pro asks for nothing beyond the download.

iMI holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Machining Advisor Pro has 162 ratings behind it against 3, so its average is the more settled of the two.

Machining Advisor Pro ships an update every 6 weeks, iMI every 4 days. The most recent releases landed on September 29, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Machining Advisor Pro | iMI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (162 ratings)](https://appshunter.io/ios/app/machining-advisor-pro/id1321154225/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/imi-inference/id6760208856/reviews)** |
| Number of ratings | **162** | 3 |
| Positive reviews | 17.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | **Ad-supported** | Freemium |
| Size | 61 MB | 12 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [HARVEY TOOL COMPANY, LLC](https://appshunter.io/developer/1321041519) | [Michael Kaminski](https://appshunter.io/developer/1870159381) |

## What reviewers say

### Machining Advisor Pro

[App page](https://appshunter.io/ios/app/machining-advisor-pro/id1321154225)

This app provides recommended running parameters for CNC machining, specifically for Helical Solutions and Harvey Tool products. It generates customized speeds and feeds based on your end mill, tool path, material, and machine setup, optimizing metal removal rates and shop productivity.

**Highlights:** CNC speeds and feeds calculator, Optimized for 30,000+ products, Supports 300+ material grades, Intuitive user interface, Customized setup options, Quick search functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### iMI

[App page](https://appshunter.io/ios/app/imi-inference/id6760208856)

This AI assistant is designed for manufacturing professionals on the shop floor. It provides answers to technical questions, helps troubleshoot issues, and offers tools for optimizing processes and calculating ROI. Securely store and access your private manufacturing documents.

**Highlights:** AI-powered manufacturing Q&A, G-code optimization, Machining strategy generation, Work instruction drafting, ROI calculator, Private on-device document vault

**Features:** Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ArloInference Starter | $9.99 | per month |
| ArloInference Pro | $19.99 | per month |
| 250 Uses — Project Sprint | $4.99 | one-time |
| 600 Uses — Heavy Week Pack | $9.99 | one-time |
| 1500 Uses — Power User Pack | $19.99 | one-time |


## Frequently asked questions

### Is Machining Advisor Pro free?

Machining Advisor Pro is free to download, with no in-app purchases.

### Is iMI free?

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

### Which has better reviews, Machining Advisor Pro or iMI?

iMI is rated higher. Machining Advisor Pro averages 4.0 out of 5 from 162 ratings, while iMI averages 5.0 from 3 ratings.

### Do Machining Advisor Pro or iMI have ads?

Machining Advisor Pro shows ads; iMI does not.

### Which is updated more often, Machining Advisor Pro or iMI?

Machining Advisor Pro ships an update every 6 weeks, and iMI every 4 days. Most recently, Machining Advisor Pro was updated on September 29, 2026 and iMI on September 21, 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.*