# testo Smart vs Johnson Controls CWa

The clearest difference is in-app purchases: Johnson Controls CWa at none against testo Smart's 5. Johnson Controls CWa also leads on review sentiment (33% vs 16%) and iOS requirement (16.0 vs 18.0). testo Smart's advantage is rating (2.7 vs 2.5) and ratings volume (167 vs 24). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. testo Smart sells 5 in-app purchases, starting at $6.99 per month. Johnson Controls CWa asks for nothing beyond the download.

testo Smart holds the better App Store score, 2.7 against 2.5. That said, the two scores are not equally well evidenced: testo Smart has 167 ratings behind it against 24, so its average is the more settled of the two. Written reviews complicate that: 16% of testo Smart'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.

testo Smart ships an update every 2 months, Johnson Controls CWa every 3 months. The most recent releases landed on September 20, 2026 and June 23, 2026 respectively.

## The numbers

| Metric | testo Smart | Johnson Controls CWa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (167 ratings)](https://appshunter.io/ios/app/testo-smart/id1482139629/reviews)** | [2.5 (24 ratings)](https://appshunter.io/ios/app/johnson-controls-cwa/id6449843911/reviews) |
| Number of ratings | **167** | 24 |
| Positive reviews | 16.3% of reviews | **33.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 195 MB | 75 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Testo SE & Co. KGaA](https://appshunter.io/developer/966489178) | [Johnson Controls, Inc.](https://appshunter.io/developer/503559091) |

## What reviewers say

### testo Smart

[App page](https://appshunter.io/ios/app/testo-smart/id1482139629)

This app supports measurements for refrigeration, HVAC, and heating systems. It also aids in food safety, frying oil quality, and indoor climate monitoring. Quickly interpret data, create digital reports with photos, and send them via email.

**Highlights:** All-in-one system measurements, Graphical display of measured values, Digital PDF/CSV measurement reports, Email report sharing, Leak test analysis, Automatic refrigerant charging, Indoor air quality monitoring

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Multi-site measurement | $6.99 | per month |
| Air balancing | $9.99 | per month |
| Multi-site measurement | $69.90 | per year |
| Air balancing | $99.90 | per year |
| Logging digital manifold | $44.99 | one-time |

**What reviewers like**

- 👍 Good app with some features
- 🚀 Great product
- 🚀 Useful app for measurements

**What reviewers complain about**

- 🐛 App won't connect
- 🐛 Connectivity issues
- 🐛 Unreliable connection
- 🐛 Forced updates
- 🐛 Laggy and unresponsive UI

**Reported bugs**

- App won't connect to devices
- Compatibility issues with newer iOS versions
- Frequent crashes and freezes
- Inability to save favorite refrigerants
- Measurement data not displaying properly

**Requested features**

- Add option to toggle Bluetooth discovery
- Improve Bluetooth range
- Add ability to customize colors and graphs
- Improve data export functionality
- Add option to name sensors


### 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 testo Smart free?

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

### Is Johnson Controls CWa free?

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

### Which has better reviews, testo Smart or Johnson Controls CWa?

testo Smart is rated higher. testo Smart averages 2.7 out of 5 from 167 ratings, while Johnson Controls CWa averages 2.5 from 24 ratings.

### Do testo Smart or Johnson Controls CWa have ads?

Neither testo Smart nor Johnson Controls CWa shows ads.

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

testo Smart ships an update every 2 months, and Johnson Controls CWa every 3 months. Most recently, testo Smart was updated on September 20, 2026 and Johnson Controls CWa on June 23, 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.*