# DV vs Johnson Controls CWa

The clearest difference is rating: DV at 3.3 against Johnson Controls CWa's 2.5. DV also leads on review sentiment (67% vs 33%) and iOS requirement (11.0 vs 16.0). Johnson Controls CWa's advantage is ratings volume (24 vs 7). On price, update cadence, 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.

DV holds the better App Store score, 3.3 against 2.5. Both are backed by a comparable volume of ratings — 7 and 24 respectively. Written reviews point the same way: 67% of DV's written reviews are positive against 33% of Johnson Controls CWa's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | DV | Johnson Controls CWa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (7 ratings)](https://appshunter.io/ios/app/dv-40s/id977734858/reviews)** | [2.5 (24 ratings)](https://appshunter.io/ios/app/johnson-controls-cwa/id6449843911/reviews) |
| Number of ratings | 7 | **24** |
| Positive reviews | **66.7% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | Free |
| Size | 55 MB | 75 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [JB Industries, Inc.](https://appshunter.io/developer/977734857) | [Johnson Controls, Inc.](https://appshunter.io/developer/503559091) |

## What reviewers say

### DV

[App page](https://appshunter.io/ios/app/dv-40s/id977734858)

This application displays real-time vacuum measurements from a wireless micron gauge. It offers advanced features like alarming, customizable themes, unit options, job timers, and data logging with email export capabilities.

**Highlights:** Wireless micron gauge integration, Real-time vacuum measurement display, Alarming capabilities, Customizable colored themes, Unit of measure options, Job timers, Data logging with save and email functionality

**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 DV free?

DV 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, DV or Johnson Controls CWa?

DV is rated higher. DV averages 3.3 out of 5 from 7 ratings, while Johnson Controls CWa averages 2.5 from 24 ratings.

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

Neither DV nor Johnson Controls CWa shows ads.

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

DV ships an update every 3 months, and Johnson Controls CWa every 3 months. Most recently, DV was updated on November 1, 2026 and Johnson Controls CWa on November 3, 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.*