# Oventrop vs Siegwerk INKonnect

The clearest difference is update cadence: Oventrop at monthly against Siegwerk INKonnect's every 12 months. Siegwerk INKonnect's advantage is iOS requirement (13.4 vs 15.6). 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.

Oventrop ships an update monthly, Siegwerk INKonnect every 12 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Oventrop | Siegwerk INKonnect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/oventrop/id396320655/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 44.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 12 months |
| Monetization | Free | — |
| Size | 48 MB | 59 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oventrop GmbH & Co. KG](https://appshunter.io/developer/396298549) | [Icona](https://appshunter.io/developer/415631722) |

## What reviewers say

### Oventrop

[App page](https://appshunter.io/ios/app/oventrop/id396320655)

This app assists with the design, calculation, and documentation of hydronic balancing for heating systems. It supports various standards and regulations, enabling users to calculate valve presets, heating loads, and radiator sizes. Documentation can be generated in PDF format or printed wirelessly.

**Highlights:** Project design with calculations (VdZ, BEG), Heating check according to EnSimiMaV and DIN SPEC 15378, OV-DMC 3 measuring system integration, Simplified heating load calculation (DIN 12831), DIN radiator and thermostatic valve sizing, ErP energy efficiency label creation, PDF documentation and wireless printing

**Features:** macOS Compatibility

**In-app purchases:** none


### Siegwerk INKonnect

[App page](https://appshunter.io/ios/app/siegwerk-inkonnect/id1634000252)

**In-app purchases:** none


## Frequently asked questions

### Is Oventrop free?

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

### Is Siegwerk INKonnect free?

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

### Do Oventrop or Siegwerk INKonnect have ads?

Neither Oventrop nor Siegwerk INKonnect shows ads.

### Which is updated more often, Oventrop or Siegwerk INKonnect?

Oventrop ships an update monthly, and Siegwerk INKonnect every 12 months. Most recently, Oventrop was updated on November 1, 2026 and Siegwerk INKonnect on November 7, 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.*