# XOi Vision vs testo Smart

The clearest difference is in-app purchases: XOi Vision at none against testo Smart's 5. XOi Vision also leads on review sentiment (33% vs 16%) and update cadence (every 3 weeks vs every 2 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. testo Smart sells 5 in-app purchases, starting at $6.99 per month. XOi Vision asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 2.8 for XOi Vision against 2.7 for testo Smart. Both are backed by a comparable volume of ratings — 112 and 167 respectively. Written reviews are what separate them: 33% of XOi Vision's written reviews are positive against 16% of testo Smart's.

XOi Vision ships an update every 3 weeks, testo Smart every 2 months. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | XOi Vision | testo Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (112 ratings)](https://appshunter.io/ios/app/xoi-vision/id1436638483/reviews)** | [2.7 (167 ratings)](https://appshunter.io/ios/app/testo-smart/id1482139629/reviews) |
| Number of ratings | 112 | **167** |
| Positive reviews | **33.3% of reviews** | 16.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 221 MB | 195 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [XOEye](https://appshunter.io/developer/1100846826) | [Testo SE & Co. KGaA](https://appshunter.io/developer/966489178) |

## What reviewers say

### XOi Vision

[App page](https://appshunter.io/ios/app/xoi-vision/id1436638483)

This platform empowers field service technicians to capture and share vital job information with customers and teams. It leverages machine learning to simplify photo and video documentation, enhancing transparency and accuracy in the field.

**Highlights:** Cloud-based platform, Information gathering and sharing, Machine learning for media, Photo and video documentation, Customer transparency, Work documentation

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

**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 XOi Vision free?

XOi Vision 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, XOi Vision or testo Smart?

XOi Vision is rated higher. XOi Vision averages 2.8 out of 5 from 112 ratings, while testo Smart averages 2.7 from 167 ratings.

### Do XOi Vision or testo Smart have ads?

Neither XOi Vision nor testo Smart shows ads.

### Which is updated more often, XOi Vision or testo Smart?

XOi Vision ships an update every 3 weeks, and testo Smart every 2 months. Most recently, XOi Vision was updated on September 23, 2026 and testo Smart on September 20, 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.*