# GM Pro AF vs Machining Calculators

The clearest difference is in-app purchases: GM Pro AF at none against Machining Calculators's 3. Machining Calculators's advantage is iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Machining Calculators sells 3 in-app purchases, starting at $2.99 per month. GM Pro AF asks for nothing beyond the download.

## The numbers

| Metric | GM Pro AF | Machining Calculators |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/gm-pro-af/id6474267202/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | — |
| Size | 53 MB | 37 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gorilla Tools, Inc](https://appshunter.io/developer/1480564474) | [Ashvin Kevadiya](https://appshunter.io/developer/1756324971) |

## What reviewers say

### GM Pro AF

[App page](https://appshunter.io/ios/app/gm-pro-af/id6474267202)

This app instantly configures running parameters for machining cutters, calculating RPM, IPM, SFM, and Chimp-Loads for various materials. It provides confidence and swagger for shop floor operations and allows sharing of findings.

**Highlights:** Instant configuration of running parameters, Calculates RPM, IPM, SFM, and Chimp-Loads, Supports a wide variety of machining materials, Quick calculations without lengthy questionnaires, Share machining findings

**Features:** Vision Pro support

**In-app purchases:** none


### Machining Calculators

[App page](https://appshunter.io/ios/app/machining-calculators/id6740812774)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Yearly Premium | $5.99 | per year |
| Lifetime | $12.99 | one-time |


## Frequently asked questions

### Is GM Pro AF free?

GM Pro AF is free to download, with no in-app purchases.

### Is Machining Calculators free?

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

### Do GM Pro AF or Machining Calculators have ads?

Neither GM Pro AF nor Machining Calculators shows ads.

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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.*