# testo Smart vs Climatix

The clearest difference is in-app purchases: Climatix at none against testo Smart's 5. Climatix also leads on rating (3.0 vs 2.7) and iOS requirement (12.0 vs 18.0). testo Smart's advantage is ratings volume (167 vs 9). 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. Climatix asks for nothing beyond the download.

Climatix holds the better App Store score, 3.0 against 2.7. That said, the two scores are not equally well evidenced: testo Smart has 167 ratings behind it against 9, so its average is the more settled of the two.

testo Smart ships an update every 2 months, Climatix every 4 months. The most recent releases landed on September 20, 2026 and July 21, 2026 respectively.

## The numbers

| Metric | testo Smart | Climatix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (167 ratings)](https://appshunter.io/ios/app/testo-smart/id1482139629/reviews) | **[3.0 (9 ratings)](https://appshunter.io/ios/app/climatix/id1527230319/reviews)** |
| Number of ratings | **167** | 9 |
| Positive reviews | 16.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 195 MB | 56 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Testo SE & Co. KGaA](https://appshunter.io/developer/966489178) | [Siemens AG](https://appshunter.io/developer/394503271) |

## 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


### Climatix

[App page](https://appshunter.io/ios/app/climatix/id1527230319)

This app facilitates the setup, commissioning, and maintenance of Siemens Climatix RT and ECO controllers. It offers secure access, quick device setup via WiFi, and intuitive diagnostics for troubleshooting and manual operation.

**Highlights:** Secure access to controllers, Quick device setup with WiFi stick, Intuitive diagnostics, I/O and sensor indication, Manual operation of data points, Alarm notifications, Replaces local user interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is testo Smart free?

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

### Is Climatix free?

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

### Which has better reviews, testo Smart or Climatix?

Climatix is rated higher. testo Smart averages 2.7 out of 5 from 167 ratings, while Climatix averages 3.0 from 9 ratings.

### Do testo Smart or Climatix have ads?

Neither testo Smart nor Climatix shows ads.

### Which is updated more often, testo Smart or Climatix?

testo Smart ships an update every 2 months, and Climatix every 4 months. Most recently, testo Smart was updated on September 20, 2026 and Climatix on July 21, 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.*