# Dreher App vs Sorotec App

The clearest difference is update cadence: Sorotec App at every 3 weeks against Dreher App's every 4 months. Dreher App's advantage is iOS requirement (13.1 vs 15.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Dreher App ships an update every 4 months, Sorotec App every 3 weeks. The most recent releases landed on October 17, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Dreher App | Sorotec App |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 8 MB | 5 MB |
| Requires iOS | **13.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Markus Meckel](https://appshunter.io/developer/852996793) | [Sorotec GmbH](https://appshunter.io/developer/1668188282) |

## What reviewers say

### Dreher App

[App page](https://appshunter.io/ios/app/dreher-app/id852996790)

This productivity tool offers a comprehensive calculator and formulary for craft professions. It includes essential data like ISO fits and thread specifications, along with other useful general information.

**Highlights:** Calculator, Formulary, ISO fits data, Thread specifications, General craft information

**In-app purchases:** none


### Sorotec App

[App page](https://appshunter.io/ios/app/sorotec-app/id1668188280)

This app provides CNC milling machine users with tools for selecting and correctly setting milling cutters. It aims to prevent setting errors and answer common questions simply, streamlining the user's workflow.

**Highlights:** Milling cutter selection tools, Correct setting guidance, Error prevention for settings, Answers common CNC questions, Streamlines work processes

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

**In-app purchases:** none


## Frequently asked questions

### Is Dreher App free?

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

### Is Sorotec App free?

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

### Do Dreher App or Sorotec App have ads?

Neither Dreher App nor Sorotec App shows ads.

### Which is updated more often, Dreher App or Sorotec App?

Dreher App ships an update every 4 months, and Sorotec App every 3 weeks. Most recently, Dreher App was updated on October 17, 2026 and Sorotec App on October 19, 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.*