# Techniker Toolbox — Technical tools & reference

> Technical calculators and lexicon for various engineering disciplines. (iPhone/iPad app by Dominik Gausmann.)

- Source: https://appshunter.io/ios/app/techniker-toolbox/id6795246932 (this page in markdown: same URL + `.md`)
- Developer: [Dominik Gausmann](https://appshunter.io/developer/1870320985)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 4 MB
- Languages: American English, Dutch, French (France), German (Germany), Italian, Japanese, Korean, Polish, Brazilian Portuguese, Chinese (Simplified, China) and 1 more
- Released: 2026-10-21
- Data updated: 2026-10-30
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/techniker-toolbox/id6795246932/reviews.md

## What is Techniker Toolbox?

Techniker Toolbox is your practical companion for maintenance, field service, workshop tasks and technical training. Technical calculators, a compact reference and clear help texts support your work on site.

ELECTRICAL ENGINEERING
Ohm’s law, three-phase power, voltage drop, motor current, circuit protection, and power supply and UPS sizing.

MECHANICS
Torque and power, conveyor belt speed, bearing life, gear ratios, motor and drive sizing, and thermal expansion.

IT AND OT
Subnets and CIDR, data rates and transfer times, storage requirements, video storage, PoE power budgets and UPS runtime.

PNEUMATICS AND HYDRAULICS
Cylinder force, pneumatic sizing, hydraulic power and compressed air consumption.

REFERENCE AND EVERYDAY TASKS
A technical reference with explanations, checks and diagrams for RJ45 T568A/B and fiber color sequences. A unit converter, dB calculator, favorites and recently used tools help you find answers quickly.

Basic features are free. An optional one-time Premium purchase permanently unlocks additional features, including advanced calculators and iCloud synchronization.

The app supports German, English, Spanish, French, Italian, Portuguese, Dutch, Polish, Japanese, Simplified Chinese and Korean. Number formatting and inputs follow your region.

Results are for guidance only and do not replace professional design or inspection. Follow local regulations, manufacturer specifications and safety requirements. Work on electrical installations must be carried out by appropriately qualified personnel.

## Key features

- Electrical engineering calculations
- Mechanics and drive calculations
- IT and OT subnetting
- Pneumatics and hydraulics
- Technical lexicon and guides
- Unit and dB converters
- Favorites and history

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Techniker Toolbox Premium | $1.99 | one-time |


## Is Techniker Toolbox safe?

Not enough ratings yet to assess Techniker Toolbox.

## Is Techniker Toolbox legit?

Techniker Toolbox appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Techniker Toolbox is 65 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/techniker-toolbox/id6795246932/reviews.md

### 5/5 — Super Tools

*2026-08-10*

Viele schöne tools und kleine Tipps. Gerne erweitern!

**Developer response:** Vielen Dank für dein Feedback! Freut mich, dass dir die Tools und Tipps im Alltag helfen. Deinen Wunsch nach Erweiterungen nehmen wir gern auf – konkrete Ideen kannst du uns jederzeit über dmnk-digital.de/support schicken. Dominik von DMNK Digital

## Frequently asked questions about Techniker Toolbox

### What technical fields does Techniker Toolbox cover?

Techniker Toolbox covers Electrotechnics (Ohms law, three-phase power), Mechanics (torque, speed), IT and OT (subnets, data rates), and Pneumatics and Hydraulics (cylinder force, air consumption). It also includes a technical lexicon and unit converters.

### Is Techniker Toolbox free to use?

Basic functions of Techniker Toolbox are available for free. Additional features, such as advanced calculators and iCloud synchronization, can be unlocked with an optional one-time premium purchase.

### What languages does Techniker Toolbox support?

Techniker Toolbox supports a wide range of languages including German, English, Spanish, French, Italian, Portuguese, Dutch, Polish, Japanese, Chinese (simplified), and Korean. It also adapts number and input formats to your region.

### What is the age rating for Techniker Toolbox?

Techniker Toolbox has an age rating of 4+, making it suitable for a broad audience. However, the app's content and calculations are intended for technical applications.

### On which devices can I use Techniker Toolbox?

Currently, Techniker Toolbox is supported on iPhones. The app was last updated on October 21, 2026, with version 1.0.2.

### Are the results from Techniker Toolbox professional planning tools?

No, all results from Techniker Toolbox serve as non-binding orientation and do not replace professional planning or inspection. Users should adhere to local regulations, manufacturer specifications, and safety requirements.

### How often is Techniker Toolbox updated?

The latest version of Techniker Toolbox is 1.0.2, which was released on October 21, 2026. This indicates regular updates to improve functionality and add features.

### Does Techniker Toolbox have ads?

No, Techniker Toolbox does not contain advertisements. The app is free with optional in-app purchases for premium features.

## Version history (last 3 releases)

### 1.0.2 — 2026-10-21

New in version 1.0.2:
• The entire app is available in eleven languages, including calculators, the reference guide, help text and messages.
• Number formatting and input follow your device’s region settings.

### 1.0.1 — 2026-10-09

Neu in Version 1.0.1:

• Motor und Antrieb: Neuer Premium-Rechner für Motordrehzahl, Übersetzung, Drehmoment und Leistung an Motorwelle und Getriebeabtrieb.

• Pneumatik-Auslegung: Neuer Premium-Rechner für mehrere Zylinder: Ausfahr- und Einfahrkräfte, Luftverbrauch und gemeinsame Luftreserve.

• Netzteil und USV: Neuer Premium-Rechner mit Verbraucherliste, Leistungsreserve, Netzteilstrom, USV-Laufzeit und benötigter Akkukapazität.

• Was ist neu: Alle Neuerungen sind jederzeit in den Einstellungen abrufbar. Nach einem Update erscheinen sie einmal automatisch, bei einer Erstinstallation nicht.

### 1.0 — 2026-08-05

No release notes.

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All apps by Dominik Gausmann: https://appshunter.io/developer/1870320985

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-30.*