# Dreher App vs rotationsdesigner

The clearest difference is update cadence: rotationsdesigner at every 2 months against Dreher App's every 4 months. Dreher App's advantage is iOS requirement (13.1 vs 18.6). 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.

Dreher App ships an update every 4 months, rotationsdesigner every 2 months. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Dreher App | rotationsdesigner |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 8 MB | 1 MB |
| Requires iOS | **13.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Markus Meckel](https://appshunter.io/developer/852996793) | [Marvin Schieleit](https://appshunter.io/developer/1887067094) |

## 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


### rotationsdesigner

[App page](https://appshunter.io/ios/app/rotationsdesigner/id6760964759)

**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 rotationsdesigner free?

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

### Do Dreher App or rotationsdesigner have ads?

Neither Dreher App nor rotationsdesigner shows ads.

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

Dreher App ships an update every 4 months, and rotationsdesigner every 2 months. Most recently, Dreher App was updated on October 17, 2026 and rotationsdesigner on October 16, 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.*