# Hoffmann Machining Calculator vs Thread Calculator

The clearest difference is ads: Hoffmann Machining Calculator at none against Thread Calculator's shown. Hoffmann Machining Calculator also leads on review sentiment (57% vs 33%) and update cadence (every 6 months vs every 18 months). On price, 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.

Hoffmann Machining Calculator ships an update every 6 months, Thread Calculator every 18 months. The most recent releases landed on September 13, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Hoffmann Machining Calculator | Thread Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (13 ratings)](https://appshunter.io/ios/app/thread-calculator/id1559560290/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | **57.1% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 months** | Every 18 months |
| Monetization | **Free** | Ad-supported |
| Size | 24 MB | 25 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hoffmann Group](https://appshunter.io/developer/537151540) | [GSR Gustav Stursberg GmbH](https://appshunter.io/developer/1559560292) |

## What reviewers say

### 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


### Thread Calculator

[App page](https://appshunter.io/ios/app/thread-calculator/id1559560290)

This app provides a quick and easy way to calculate thread dimensions for various units, including tap hole sizes and bolt specifications. It helps metalworkers find precise measurements for internal and external threads without consulting tables.

**Highlights:** Thread cutting calculator for multiple units, Cold forming calculator, Thread repair calculator, Tap hole and bolt diameter calculation, Saves time compared to tables

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hoffmann Machining Calculator free?

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

### Is Thread Calculator free?

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

### Do Hoffmann Machining Calculator or Thread Calculator have ads?

Thread Calculator shows ads; Hoffmann Machining Calculator does not.

### Which is updated more often, Hoffmann Machining Calculator or Thread Calculator?

Hoffmann Machining Calculator ships an update every 6 months, and Thread Calculator every 18 months. Most recently, Hoffmann Machining Calculator was updated on September 13, 2026 and Thread Calculator on September 9, 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.*