# Oventrop vs ECAP

The clearest difference is in-app purchases: Oventrop at none against ECAP's 3. ECAP's advantage is update cadence (every 2 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ECAP sells 3 in-app purchases, starting at $4.99 per 7 days. Oventrop asks for nothing beyond the download.

Oventrop ships an update monthly, ECAP every 2 days. The most recent releases landed on October 23, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Oventrop | ECAP |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free | — |
| Size | 48 MB | 35 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oventrop GmbH & Co. KG](https://appshunter.io/developer/396298549) | [VEGARD HELLAND BU](https://appshunter.io/developer/6780784892) |

## 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


### ECAP

[App page](https://appshunter.io/ios/app/ecap-electrical-docs/id6780784890)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ECAP Pro | $4.99 | per 7 days |
| ECAP Pro | $12.99 | per month |
| ECAP Pro | $89.99 | per year |


## Frequently asked questions

### Is Oventrop free?

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

### Is ECAP free?

ECAP is free to download, with in-app purchases available.

### Do Oventrop or ECAP have ads?

Neither Oventrop nor ECAP shows ads.

### Which is updated more often, Oventrop or ECAP?

Oventrop ships an update monthly, and ECAP every 2 days. Most recently, Oventrop was updated on October 23, 2026 and ECAP on October 31, 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.*