# testo 330i App vs CPS Link Pro

The clearest difference is rating: CPS Link Pro at 5.0 against testo 330i App's 3.0. CPS Link Pro also leads on update cadence (every 6 weeks vs every 4 months). testo 330i App's advantage is iOS requirement (12 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CPS Link Pro holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

testo 330i App ships an update every 4 months, CPS Link Pro every 6 weeks. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | testo 330i App | CPS Link Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/testo-330i-app/id1007290554/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cps-link-pro/id1590371938/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 52 MB | 73 MB |
| Requires iOS | **12** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Testo SE & Co. KGaA](https://appshunter.io/developer/966489178) | [CPS Products](https://appshunter.io/developer/945771072) |

## What reviewers say

### testo 330i App

[App page](https://appshunter.io/ios/app/testo-330i-app/id1007290554)

Control your testo 330i flue gas analyzer remotely from your smartphone or tablet. View live measurement values, create detailed PDF reports with photos and your logo, and send them directly from the field. Offers a graphical trend view and data export options.

**Highlights:** Complete analyzer control via smartphone/tablet, Intuitive touchscreen handling, Graphical trend view, PDF report creation, Export measurement values (CSV, ZIV), Insert photos and comments into reports, Bluetooth connectivity (20m range)

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

**In-app purchases:** none


### CPS Link Pro

[App page](https://appshunter.io/ios/app/cps-link-pro/id1590371938)

Connect multiple wireless sensors for comprehensive diagnostic measurements. Build custom systems for quick tasks or complex full-home diagnostics with advanced analytics. Expand your capabilities with a range of available sensors.

**Highlights:** Connect multiple wireless sensors, Comprehensive diagnostic measurement system, Flexible system for custom measurement needs, Advanced analytics for diagnostics, Supports HVAC/R service needs, Interconnectivity with future sensors

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

**In-app purchases:** none


## Frequently asked questions

### Is testo 330i App free?

testo 330i App is free to download, with no in-app purchases.

### Is CPS Link Pro free?

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

### Which has better reviews, testo 330i App or CPS Link Pro?

CPS Link Pro is rated higher. testo 330i App averages 3.0 out of 5 from 2 ratings, while CPS Link Pro averages 5.0 from 2 ratings.

### Do testo 330i App or CPS Link Pro have ads?

Neither testo 330i App nor CPS Link Pro shows ads.

### Which is updated more often, testo 330i App or CPS Link Pro?

testo 330i App ships an update every 4 months, and CPS Link Pro every 6 weeks. Most recently, testo 330i App was updated on October 12, 2026 and CPS Link Pro on October 13, 2026.

---

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