# KATO App vs Mach

The clearest difference is update cadence: Mach at every 3 months against KATO App's every 9 months. KATO App's advantage is iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

KATO App ships an update every 9 months, Mach every 3 months. The most recent releases landed on October 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | KATO App | Mach |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kato-app/id1040959765/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 52 MB | 47 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [KATO Fastening Systems](https://appshunter.io/developer/379001174) | [Michel Meuwszen](https://appshunter.io/developer/1438613857) |

## What reviewers say

### KATO App

[App page](https://appshunter.io/ios/app/kato-app/id1040959765)

This app provides a powerful search tool for helical coil screw thread inserts and related tooling. It features a comprehensive database with multiple search options and detailed technical information for various industry standards.

**Highlights:** Comprehensive database of helical coil screw thread inserts, Four search options: Part Number, Style & Size, MS/MA, NAS/NA, Product and technical information lookup, Tooling suggestions (Air, Electric, Manual, Removal), Detailed technical specifications (dimensions, drill sizes, etc.), Compatibility with military and aerospace part numbers

**Features:** macOS Compatibility

**In-app purchases:** none


### Mach

[App page](https://appshunter.io/ios/app/mach-c-support-app/id1438613858)

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

**In-app purchases:** none


## Frequently asked questions

### Is KATO App free?

KATO App is free to download, with no in-app purchases.

### Is Mach free?

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

### Do KATO App or Mach have ads?

Neither KATO App nor Mach shows ads.

### Which is updated more often, KATO App or Mach?

KATO App ships an update every 9 months, and Mach every 3 months. Most recently, KATO App was updated on October 6, 2026 and Mach on October 25, 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.*