# Baker HVAC Pro+ vs testo Smart

The clearest difference is review sentiment: Baker HVAC Pro+ at 85% against testo Smart's 16%. Baker HVAC Pro+ also leads on rating (4.9 vs 2.7) and in-app purchases (none vs 5). On price, 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. Baker HVAC Pro+ asks for nothing beyond the download.

Baker HVAC Pro+ holds the better App Store score, 4.9 against 2.7. Both are backed by a comparable volume of ratings — 587 and 167 respectively. Written reviews point the same way: 85% of Baker HVAC Pro+'s written reviews are positive against 16% of testo Smart's.

Baker HVAC Pro+ ships an update monthly, testo Smart every 2 months. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Baker HVAC Pro+ | testo Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (587 ratings)](https://appshunter.io/ios/app/baker-hvac-pro-plus/id511192312/reviews)** | [2.7 (167 ratings)](https://appshunter.io/ios/app/testo-smart/id1482139629/reviews) |
| Number of ratings | **587** | 167 |
| Positive reviews | **85.0% of reviews** | 16.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 165 MB | 195 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Watsco, Inc.](https://appshunter.io/developer/510378878) | [Testo SE & Co. KGaA](https://appshunter.io/developer/966489178) |

## What reviewers say

### Baker HVAC Pro+

[App page](https://appshunter.io/ios/app/baker-hvac-pro-plus/id511192312)

This app provides HVAC/R professionals with on-the-go access to product information and essential tools. It features real-time order tracking, a duct calculator, warranty verification, and branch location details. Users can also search for parts, view technical documents, and receive special offer notifications.

**Highlights:** Real-time order status, Duct calculator, Product availability and pricing, Warranty registration verification, Parts and model search, Technical document access, Branch locator and directions

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

**In-app purchases:** none

**What reviewers like**

- 👍 Time saver
- 👍 Easy to find information
- 👍 Great for ordering parts
- 👍 Helpful for checking stock
- 👍 Useful for customer warranties

**What reviewers complain about**

- 🐛 Error messages
- 🐛 App not working
- ⚠️ Too many alerts
- ⚠️ Annoying alerts

**Reported bugs**

- App not working anymore
- Error messages

**Requested features**

- Add R448A to P/T calc
- Tie account to app for pricing


### 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


## Frequently asked questions

### Is Baker HVAC Pro+ free?

Baker HVAC Pro+ is free to download, with no in-app purchases.

### Is testo Smart free?

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

### Which has better reviews, Baker HVAC Pro+ or testo Smart?

Baker HVAC Pro+ is rated higher. Baker HVAC Pro+ averages 4.9 out of 5 from 587 ratings, while testo Smart averages 2.7 from 167 ratings.

### Do Baker HVAC Pro+ or testo Smart have ads?

Neither Baker HVAC Pro+ nor testo Smart shows ads.

### Which is updated more often, Baker HVAC Pro+ or testo Smart?

Baker HVAC Pro+ ships an update monthly, and testo Smart every 2 months. Most recently, Baker HVAC Pro+ was updated on October 12, 2026 and testo Smart on October 13, 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.*