# Munters PsychroApp vs testo Smart

The clearest difference is review sentiment: Munters PsychroApp at 75% against testo Smart's 16%. Munters PsychroApp also leads on rating (3.7 vs 2.7) and in-app purchases (none vs 5). testo Smart's advantage is ratings volume (170 vs 9) and update cadence (every 2 months vs every 5 months). 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. Munters PsychroApp asks for nothing beyond the download.

Munters PsychroApp holds the better App Store score, 3.7 against 2.7. That said, the two scores are not equally well evidenced: testo Smart has 170 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 75% of Munters PsychroApp's written reviews are positive against 16% of testo Smart's.

Munters PsychroApp ships an update every 5 months, testo Smart every 2 months. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Munters PsychroApp | testo Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (9 ratings)](https://appshunter.io/ios/app/munters-psychroapp/id447875323/reviews)** | [2.7 (170 ratings)](https://appshunter.io/ios/app/testo-smart/id1482139629/reviews) |
| Number of ratings | 9 | **170** |
| Positive reviews | **75.0% of reviews** | 16.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 195 MB |
| Requires iOS | **10.3** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Munters Europe AB](https://appshunter.io/developer/447875326) | [Testo SE & Co. KGaA](https://appshunter.io/developer/966489178) |

## What reviewers say

### Munters PsychroApp

[App page](https://appshunter.io/ios/app/munters-psychroapp/id447875323)

This tool provides quick and accurate psychrometric calculations for moist air properties. It offers detailed thermodynamic data, including dew point and humidity ratios, using ASHRAE equations. Supports both imperial and SI units for various applications.

**Highlights:** Psychrometric calculations, Dew point and humidity ratio, Imperial and SI units, Mixing and process screens, ASHRAE equations, Unit conversions

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Munters PsychroApp free?

Munters PsychroApp 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, Munters PsychroApp or testo Smart?

Munters PsychroApp is rated higher. Munters PsychroApp averages 3.7 out of 5 from 9 ratings, while testo Smart averages 2.7 from 170 ratings.

### Do Munters PsychroApp or testo Smart have ads?

Neither Munters PsychroApp nor testo Smart shows ads.

### Which is updated more often, Munters PsychroApp or testo Smart?

Munters PsychroApp ships an update every 5 months, and testo Smart every 2 months. Most recently, Munters PsychroApp was updated on October 23, 2026 and testo Smart on October 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*