HyTools vs testo Combustion App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HyTools
This app provides HVAC professionals with a comprehensive suite of hydronic calculation tools. It assists with tasks like valve sizing, pressure drop calculations, and radiator power estimation. The tool offers unit conversion and language selection for user convenience.
- Hydronic calculator
- Valve sizing and presetting
- Radiator power estimation
- Pipe sizing
- Unit conversion
- Pressure maintenance calculation
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IMI Hydronic Engineering proudly presents HyTools, the user-friendly hydronic calculator App for HVAC professionals. Features include: - Hydronic calculator (enter any two values and get the third one): - flow - Kv/Cv - pressure drop - power - flow - temperature difference - flow - valve setting - pressure drop - Dirt and air separator pressure drop calculation - Valve sizing and presetting - Radiator power estimation (panel and column) - Radiator valve sizing and presetting - Pipe sizing - Unit conversion - Run-time selection of localisation - Run-time selection of language - Pressure maintenance and vacuum degassing calculation and selection for heating, cooling and solar systems Stay tuned for great upcoming updates adding further hydronic calculation functions. Please visit www.imi-hydronic.com for more information and contact details. Phone numbers to local support can be found here: http://www.imi-hydronic.com/en/contact/ IMI Hydronic Engineering International SA is the leading global provider and expert in hydronic distribution systems and room temperature control, with experience in more than 100,000 projects worldwide. We help our customers everywhere optimise HVAC systems so they deliver desired comfort with optimal efficiency. IMI Hydronic Engineering is part of the international engineering group IMI plc which is listed as a member of the FTSE 100 on the London Stock Exchange.
testo Combustion App
Control your flue gas analyzer remotely and create on-site reports with photos and custom logos. Send documentation instantly to your office or customers. Track changes with graphical trend views and export data in CSV format.
- Remote instrument control
- On-site report creation
- Photo integration in reports
- Custom logo reports
- Graphical trend view
- CSV data export
- Bluetooth connectivity
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The App for controlling the testo 330 flue gas analyzer and for report creation on site Install our free App on your Smartphone/tablet, and start / stop your testo 330 right where you happen to be. The report, with photos, can be sent to your office or directly to the customer as a simple and fast documentation, right after the measurement! - Start and stop of the measuring instrument via Smartphone and tablet - Easy and intuitive menu guide in the touchscreen - Track changes using the graphical trend view - The measurement values always in view during the adjustment of the system. - Creation of PDF reports or export of measurement values in csv (Excel) - Create reports with your own logo - Range of approx. 20 m without obstruction via Bluetooth This app can be used with the testo 330 flue gas analyzer with bluetooth low energy module only!!
Screenshots
Verdict
The clearest difference is rating: HyTools at 4.0 against testo Combustion App's 1.4. HyTools also leads on review sentiment (50% vs 13%) and update cadence (every 6 weeks vs every 9 months). testo Combustion App's advantage is iOS requirement (13.0 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
HyTools holds the better App Store score, 4.0 against 1.4. Both are backed by a comparable volume of ratings — 5 and 10 respectively. Written reviews point the same way: 50% of HyTools's written reviews are positive against 13% of testo Combustion App's.
HyTools ships an update every 6 weeks, testo Combustion App every 9 months. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.
| Parameter | HyTools | testo Combustion App |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (5 ratings) — better | 1.4 (10 ratings) |
| Positive reviews | 50.0% of reviews — better | 12.8% of reviews |
| Number of ratings | 5 | 10 — better |
| Update frequency | Every 6 weeks — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 114 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | IMI Hydronic Engineering International SA | Testo SE & Co. KGaA |
Customer experience
HyTools
testo Combustion App
In-app purchases
HyTools
No in-app purchases
testo Combustion App
No in-app purchases
Questions
Is HyTools free?
Is testo Combustion App free?
Which has better reviews, HyTools or testo Combustion App?
Do HyTools or testo Combustion App have ads?
Which is updated more often, HyTools or testo Combustion App?
Other comparisons
