# testo Smart vs GoTemp Pro

The clearest difference is rating: GoTemp Pro at 3.4 against testo Smart's 2.7. GoTemp Pro also leads on in-app purchases (none vs 5) and review sentiment (33% vs 16%). testo Smart's advantage is ratings volume (167 vs 14). 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. GoTemp Pro asks for nothing beyond the download.

GoTemp Pro holds the better App Store score, 3.4 against 2.7. That said, the two scores are not equally well evidenced: testo Smart has 167 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 16% of testo Smart's written reviews are positive against 33% of GoTemp Pro's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 20, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | testo Smart | GoTemp Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (167 ratings)](https://appshunter.io/ios/app/testo-smart/id1482139629/reviews) | **[3.4 (14 ratings)](https://appshunter.io/ios/app/gotemp-pro/id1495956404/reviews)** |
| Number of ratings | **167** | 14 |
| Positive reviews | 16.3% of reviews | **33.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 195 MB | 139 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| 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


### GoTemp Pro

[App page](https://appshunter.io/ios/app/gotemp-pro/id1495956404)

This app offers service technicians powerful tools for troubleshooting and servicing commercial and residential product lines. Access product information, literature, warranty details, and technical calculators by scanning QR codes or entering serial numbers.

**Highlights:** Product information access, Technical literature library, Warranty management, Bluetooth connectivity for commercial equipment, Issue reporting, Technical calculators, Training materials

**In-app purchases:** none


## Frequently asked questions

### Is testo Smart free?

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

### Is GoTemp Pro free?

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

### Which has better reviews, testo Smart or GoTemp Pro?

GoTemp Pro is rated higher. testo Smart averages 2.7 out of 5 from 167 ratings, while GoTemp Pro averages 3.4 from 14 ratings.

### Do testo Smart or GoTemp Pro have ads?

Neither testo Smart nor GoTemp Pro shows ads.

### Which is updated more often, testo Smart or GoTemp Pro?

testo Smart ships an update every 2 months, and GoTemp Pro every 2 months. Most recently, testo Smart was updated on September 20, 2026 and GoTemp Pro on September 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.*