# WEG Data Viewer vs Johnson Controls CWa

The clearest difference is rating: WEG Data Viewer at 3.1 against Johnson Controls CWa's 2.5. WEG Data Viewer also leads on update cadence (monthly vs every 3 months). Johnson Controls CWa's advantage is review sentiment (33% vs 13%). On price, ratings volume, 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.

WEG Data Viewer holds the better App Store score, 3.1 against 2.5. Both are backed by a comparable volume of ratings — 27 and 24 respectively. Written reviews complicate that: 13% of WEG Data Viewer's written reviews are positive against 33% of Johnson Controls CWa's, so the app with the better star average is not the one people write more warmly about.

WEG Data Viewer ships an update monthly, Johnson Controls CWa every 3 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | WEG Data Viewer | Johnson Controls CWa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (27 ratings)](https://appshunter.io/ios/app/weg-data-viewer/id1576866018/reviews)** | [2.5 (24 ratings)](https://appshunter.io/ios/app/johnson-controls-cwa/id6449843911/reviews) |
| Number of ratings | **27** | 24 |
| Positive reviews | 12.5% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | Free |
| Size | 30 MB | 75 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [WEG Equipamentos Eletricos S/A](https://appshunter.io/developer/575847223) | [Johnson Controls, Inc.](https://appshunter.io/developer/503559091) |

## What reviewers say

### WEG Data Viewer

[App page](https://appshunter.io/ios/app/weg-data-viewer/id1576866018)

Access technical documents for WEG products, including data sheets, drawings, and manuals for electric motors, automation equipment, and ink. Easily search for specific information within a wide range of technical documentation.

**Highlights:** Search technical documents, Access data sheets, View drawings, Find manuals, Browse bulletins, Technical documentation for WEG products

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

**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 WEG Data Viewer free?

WEG Data Viewer 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, WEG Data Viewer or Johnson Controls CWa?

WEG Data Viewer is rated higher. WEG Data Viewer averages 3.1 out of 5 from 27 ratings, while Johnson Controls CWa averages 2.5 from 24 ratings.

### Do WEG Data Viewer or Johnson Controls CWa have ads?

Neither WEG Data Viewer nor Johnson Controls CWa shows ads.

### Which is updated more often, WEG Data Viewer or Johnson Controls CWa?

WEG Data Viewer ships an update monthly, and Johnson Controls CWa every 3 months. Most recently, WEG Data Viewer was updated on October 24, 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.*