# testo Smart vs VexMe

The clearest difference is update cadence: VexMe at daily against testo Smart's every 2 months. VexMe also leads on iOS requirement (16.4 vs 18.0). On price, ads, in-app purchases 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 and VexMe sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

testo Smart ships an update every 2 months, VexMe daily. The most recent releases landed on November 14, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | testo Smart | VexMe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (171 ratings)](https://appshunter.io/ios/app/testo-smart/id1482139629/reviews)** | — |
| Number of ratings | **171** | — |
| Positive reviews | 16.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 195 MB | 61 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Testo SE & Co. KGaA](https://appshunter.io/developer/966489178) | [Romain Joulia](https://appshunter.io/developer/1874554809) |

## 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


### VexMe

[App page](https://appshunter.io/ios/app/vexme/id6816722148)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VexMe Premium | $3.99 | per month |
| VexMe Premium annuel | $34.99 | per year |


## Frequently asked questions

### Is testo Smart free?

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

### Is VexMe free?

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

### Do testo Smart or VexMe have ads?

Neither testo Smart nor VexMe shows ads.

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

testo Smart ships an update every 2 months, and VexMe daily. Most recently, testo Smart was updated on November 14, 2026 and VexMe on November 10, 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.*