# Formeln & Tabellen Metall vs tec2SKILL Pneumatics

The clearest difference is monetization model: tec2SKILL Pneumatics at free against Formeln & Tabellen Metall's free with in-app purchases. Formeln & Tabellen Metall's advantage is review sentiment (36% vs 17%) and iOS requirement (10.0 vs 15.0). On price, update cadence, 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.

Formeln & Tabellen Metall ships an update every 9 months, tec2SKILL Pneumatics every 14 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | Formeln & Tabellen Metall | tec2SKILL Pneumatics |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **36.4% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 14 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 35 MB | 2.4 GB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Verlag Europa-Lehrmittel Nourney Vollmer GmbH & Co. KG](https://appshunter.io/developer/675507028) | [ETS DIDACTIC GMBH](https://appshunter.io/developer/1209946511) |

## What reviewers say

### Formeln & Tabellen Metall

[App page](https://appshunter.io/ios/app/formeln-and-tabellen-metall/id1201678103)

This app provides quick conversions for basic units and calculations for angles, hardness, and fits. It includes technology tables for materials, threads, and fasteners, along with supplementary formulas and videos.

**Highlights:** Unit conversions, Angle calculations, Hardness value determination, Fit tolerance calculations, Material property tables, Thread and fastener data, Supplementary formulas and videos

**In-app purchases:** none


### tec2SKILL Pneumatics

[App page](https://appshunter.io/ios/app/tec2skill-pneumatics/id1225564970)

This digital assistant aids in learning pneumatics and electro-pneumatics. It supports the training system from ETS DIDACTIC GMBH, covering various industrial and technical professions.

**Highlights:** Digital learning assistant, Pneumatics education, Electro-pneumatics education, Supports ETS DIDACTIC GMBH system, Aids industrial training, Covers multiple technical professions

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

**In-app purchases:** none


## Frequently asked questions

### Is Formeln & Tabellen Metall free?

Formeln & Tabellen Metall is free to download, with no in-app purchases.

### Is tec2SKILL Pneumatics free?

tec2SKILL Pneumatics is free to download, with no in-app purchases.

### Do Formeln & Tabellen Metall or tec2SKILL Pneumatics have ads?

Neither Formeln & Tabellen Metall nor tec2SKILL Pneumatics shows ads.

### Which is updated more often, Formeln & Tabellen Metall or tec2SKILL Pneumatics?

Formeln & Tabellen Metall ships an update every 9 months, and tec2SKILL Pneumatics every 14 months. Most recently, Formeln & Tabellen Metall was updated on November 2, 2026 and tec2SKILL Pneumatics on November 2, 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.*