# Hoffmann Machining Calculator vs MyPDFScanner

The clearest difference is in-app purchases: Hoffmann Machining Calculator at none against MyPDFScanner's 1. Hoffmann Machining Calculator also leads on ads (none vs shown) and iOS requirement (13.4 vs 15.1). MyPDFScanner's advantage is update cadence (every 3 days vs every 6 months). On price and device support there is nothing between them.

Both are free to download. MyPDFScanner sells 1 one-off in-app purchase. Hoffmann Machining Calculator asks for nothing beyond the download.

Hoffmann Machining Calculator ships an update every 6 months, MyPDFScanner every 3 days. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Hoffmann Machining Calculator | MyPDFScanner |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 24 MB | 40 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hoffmann Group](https://appshunter.io/developer/537151540) | [Sven Grabowski](https://appshunter.io/developer/1892526604) |

## 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


### MyPDFScanner

[App page](https://appshunter.io/ios/app/mypdfscanner-document-scan/id6767652704)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MyPDFScanner Pro | $3.99 | one-time |


## Frequently asked questions

### Is Hoffmann Machining Calculator free?

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

### Is MyPDFScanner free?

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

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

MyPDFScanner shows ads; Hoffmann Machining Calculator does not.

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

Hoffmann Machining Calculator ships an update every 6 months, and MyPDFScanner every 3 days. Most recently, Hoffmann Machining Calculator was updated on October 5, 2026 and MyPDFScanner on October 15, 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.*