# Oventrop vs Johnson Controls CWa

The clearest difference is rating: Oventrop at 5.0 against Johnson Controls CWa's 2.5. Oventrop also leads on update cadence (monthly vs every 3 months) and review sentiment (44% vs 33%). Johnson Controls CWa's advantage is ratings volume (24 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Oventrop holds the better App Store score, 5.0 against 2.5. That said, the two scores are not equally well evidenced: Johnson Controls CWa has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 44% of Oventrop's written reviews are positive against 33% of Johnson Controls CWa's.

Oventrop ships an update monthly, Johnson Controls CWa every 3 months. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Oventrop | Johnson Controls CWa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/oventrop/id396320655/reviews)** | [2.5 (24 ratings)](https://appshunter.io/ios/app/johnson-controls-cwa/id6449843911/reviews) |
| Number of ratings | 1 | **24** |
| Positive reviews | **44.4% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | Free |
| Size | 48 MB | 75 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Oventrop GmbH & Co. KG](https://appshunter.io/developer/396298549) | [Johnson Controls, Inc.](https://appshunter.io/developer/503559091) |

## 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


### Johnson Controls CWa

[App page](https://appshunter.io/ios/app/johnson-controls-cwa/id6449843911)

This app assists HVAC field installers and service contractors with onsite tasks. It allows technicians to discover and configure equipment controllers, create punch lists, and balance VAV boxes, with exportable reports.

**Highlights:** Discover BACnet compatible equipment controllers, View and test equipment hardware points, Create real-time punch lists, Configure equipment data, Display trends and events, Balance single duct VAV boxes, Export balancing reports

**In-app purchases:** none


## Frequently asked questions

### Is Oventrop free?

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

### Is Johnson Controls CWa free?

Johnson Controls CWa is free to download, with no in-app purchases.

### Which has better reviews, Oventrop or Johnson Controls CWa?

Oventrop is rated higher. Oventrop averages 5.0 out of 5 from 1 ratings, while Johnson Controls CWa averages 2.5 from 24 ratings.

### Do Oventrop or Johnson Controls CWa have ads?

Neither Oventrop nor Johnson Controls CWa shows ads.

### Which is updated more often, Oventrop or Johnson Controls CWa?

Oventrop ships an update monthly, and Johnson Controls CWa every 3 months. Most recently, Oventrop was updated on October 23, 2026 and Johnson Controls CWa on October 16, 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.*