# Walter Insert Converter vs Hoffmann Machining Calculator

The clearest difference is review sentiment: Hoffmann Machining Calculator at 57% against Walter Insert Converter's 0%. Hoffmann Machining Calculator also leads on update cadence (every 6 months vs every 23 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Walter Insert Converter ships an update every 23 months, Hoffmann Machining Calculator every 6 months. The most recent releases landed on June 1, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Walter Insert Converter | Hoffmann Machining Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **57.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 6 months** |
| Monetization | Free | Free |
| Size | 33 MB | 24 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Walter-AG](https://appshunter.io/developer/423564215) | [Hoffmann Group](https://appshunter.io/developer/537151540) |

## What reviewers say

### Walter Insert Converter

[App page](https://appshunter.io/ios/app/walter-insert-converter/id1261251907)

Easily find equivalent Walter inserts for your current machining tools. Optimize chip cutting, extend tool life, and enhance process safety and productivity.

**Highlights:** Find equivalent Walter inserts, Optimize chip cutting, Increase tool life, Enhance process safety, Supports ISO-Turning, parting-off, grooving, Covers advanced materials (CBN/PKD/Ceramics/Cermet)

**Features:** macOS Compatibility

**In-app purchases:** none


### Hoffmann Machining Calculator

[App page](https://appshunter.io/ios/app/hoffmann-machining-calculator/id1450938067)

Calculate essential cutting and performance data for turning, drilling, and milling operations. This tool provides quick, offline access to crucial machining parameters, supporting various production methods with clear formulas and a user-friendly interface.

**Highlights:** Calculate cutting data for turning, drilling, milling, TPC milling parameter calculation, Forward and reverse calculations, Access to material database, Clear formulae with pictograms, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Walter Insert Converter free?

Walter Insert Converter is free to download, with no in-app purchases.

### Is Hoffmann Machining Calculator free?

Hoffmann Machining Calculator is free to download, with no in-app purchases.

### Do Walter Insert Converter or Hoffmann Machining Calculator have ads?

Neither Walter Insert Converter nor Hoffmann Machining Calculator shows ads.

### Which is updated more often, Walter Insert Converter or Hoffmann Machining Calculator?

Walter Insert Converter ships an update every 23 months, and Hoffmann Machining Calculator every 6 months. Most recently, Walter Insert Converter was updated on June 1, 2026 and Hoffmann Machining Calculator on September 13, 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.*