# Stüwa vs FRANK ElectroFusion Studio

The clearest difference is iOS requirement: Stüwa at 11.0 against FRANK ElectroFusion Studio's 14.0. 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.

Stüwa ships an update every 5 months, FRANK ElectroFusion Studio every 3 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | Stüwa | FRANK ElectroFusion Studio |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 6 MB | 53 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [C&S concepts & solutions GmbH](https://appshunter.io/developer/562192033) | [PF-Schweisstechnologie GmbH](https://appshunter.io/developer/1185794454) |

## What reviewers say

### Stüwa

[App page](https://appshunter.io/ios/app/stuwa/id1186665454)

This app provides a practical daily tool for well construction, water supply, pump design, geotechnics, drilling technology, and geothermal energy. It allows users to perform calculations, access product data sheets, and find industry information.

**Highlights:** Well construction calculations, Water supply information, Pump design tools, Geotechnics data, Drilling technology resources, Geothermal energy information, Product data sheets

**Features:** macOS Compatibility

**In-app purchases:** none


### FRANK ElectroFusion Studio

[App page](https://appshunter.io/ios/app/frank-electrofusion-studio/id1207834186)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stüwa free?

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

### Is FRANK ElectroFusion Studio free?

FRANK ElectroFusion Studio is free to download, with no in-app purchases.

### Do Stüwa or FRANK ElectroFusion Studio have ads?

Neither Stüwa nor FRANK ElectroFusion Studio shows ads.

### Which is updated more often, Stüwa or FRANK ElectroFusion Studio?

Stüwa ships an update every 5 months, and FRANK ElectroFusion Studio every 3 months. Most recently, Stüwa was updated on November 2, 2026 and FRANK ElectroFusion Studio 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.*