# PlugGuide vs Rohrdimensionierung

The clearest difference is price: PlugGuide at Free against Rohrdimensionierung's $3.99. PlugGuide also leads on iOS requirement (8.0 vs 26.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

PlugGuide is free to download; Rohrdimensionierung costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 20, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PlugGuide | Rohrdimensionierung |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Paid |
| Size | 8 MB | 2 MB |
| Requires iOS | **8.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pluggit GmbH](https://appshunter.io/developer/698715683) | [Burak Doelek](https://appshunter.io/developer/1602361104) |

## What reviewers say

### PlugGuide

[App page](https://appshunter.io/ios/app/plugguide/id1384963687)

This app provides detailed information on central, decentralized, and unit-based ventilation systems. It offers tailored content for architects, installers, planners, property managers, owners, tenants, and wholesalers.

**Highlights:** Central ventilation systems, Decentralized ventilation systems, Unit-based ventilation systems, Tailored information for professionals, Information for homeowners and tenants

**Features:** macOS Compatibility

**In-app purchases:** none


### Rohrdimensionierung

[App page](https://appshunter.io/ios/app/rohrdimensionierung/id1602361102)

Calculate pipe dimensions and heating capacity for heating systems. Supports steel pipes from DN 15 to 600 and stainless steel press pipes from 15mm to 108mm. Input temperature, density, specific heat, and flow rate.

**Highlights:** Pipe dimension calculation, Heating capacity calculation, Steel pipe support (DN 15-600), Stainless steel press pipe support (15-108mm), Temperature input, Density input, Specific heat input, Flow rate input

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

**In-app purchases:** none


## Frequently asked questions

### Is PlugGuide free?

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

### Is Rohrdimensionierung free?

Rohrdimensionierung costs $3.99, with no in-app purchases.

### Do PlugGuide or Rohrdimensionierung have ads?

Neither PlugGuide nor Rohrdimensionierung shows ads.

### Which is updated more often, PlugGuide or Rohrdimensionierung?

PlugGuide ships an update every 2 months, and Rohrdimensionierung every 2 months. Most recently, PlugGuide was updated on October 20, 2026 and Rohrdimensionierung on October 9, 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.*