# testo Combustion App vs BluVac

The clearest difference is rating: BluVac at 5.0 against testo Combustion App's 1.4. BluVac also leads on review sentiment (36% vs 13%) and update cadence (every 2 months vs every 7 months). testo Combustion App's advantage is ratings volume (10 vs 2) and iOS requirement (9.3 vs 11.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

BluVac holds the better App Store score, 5.0 against 1.4. That said, the two scores are not equally well evidenced: testo Combustion App has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 13% of testo Combustion App's written reviews are positive against 36% of BluVac's.

testo Combustion App ships an update every 7 months, BluVac every 2 months. The most recent releases landed on September 20, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | testo Combustion App | BluVac |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.4 (10 ratings)](https://appshunter.io/ios/app/testo-combustion-app/id992414788/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bluvac/id1227222428/reviews)** |
| Number of ratings | **10** | 2 |
| Positive reviews | 12.8% of reviews | **36.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 62 MB | 25 MB |
| Requires iOS | **9.3** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Testo SE & Co. KGaA](https://appshunter.io/developer/966489178) | [Manifold Cloud Services Ltd.](https://appshunter.io/developer/1227222427) |

## What reviewers say

### testo Combustion App

[App page](https://appshunter.io/ios/app/testo-combustion-app/id992414788)

Control your testo 330 flue gas analyzer remotely from your smartphone or tablet. Create and send professional PDF reports with photos and your logo directly from the field, ensuring fast and efficient documentation.

**Highlights:** Remote start/stop of measuring instrument, Intuitive touchscreen menu, Graphical trend view, PDF report creation, Export measurement values to CSV, Customizable reports with logo, Bluetooth connectivity (20m range)

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

**In-app purchases:** none


### BluVac

[App page](https://appshunter.io/ios/app/bluvac/id1227222428)

Connect to compatible vacuum gauges via Bluetooth to perform detailed system evacuations. Features timed tests, decay tests, and data recording. Offers advanced reporting, multiple gauge connections, and geolocation for enhanced screenshots.

**Highlights:** Bluetooth gauge connection, Timed evacuation tests, Decay test functionality, Detailed results viewing, mQ Assist integration, Pro Report feature, Connect up to 6 gauges

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is testo Combustion App free?

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

### Is BluVac free?

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

### Which has better reviews, testo Combustion App or BluVac?

BluVac is rated higher. testo Combustion App averages 1.4 out of 5 from 10 ratings, while BluVac averages 5.0 from 2 ratings.

### Do testo Combustion App or BluVac have ads?

Neither testo Combustion App nor BluVac shows ads.

### Which is updated more often, testo Combustion App or BluVac?

testo Combustion App ships an update every 7 months, and BluVac every 2 months. Most recently, testo Combustion App was updated on September 20, 2026 and BluVac on September 9, 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.*