HyTools vs Site Survey
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
Read full descriptionHide full description
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.
Site Survey
Read full descriptionHide full description
De werkplek schouwen lastig en tijdrovend? Niet met de Site Survey app. Beantwoord de vragen op je smartphone, tablet of laptop en voeg direct foto’s toe. Geef op de foto’s het tracé en andere bijzonderheden aan en verstuur een volledig opgemaakt rapport met één druk op de knop.
Screenshots
Verdict
The clearest difference is update cadence: HyTools at every 6 weeks against Site Survey's every 13 months. On price, ads, in-app purchases and device support 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 ships an update every 6 weeks, Site Survey every 13 months. The most recent releases landed on October 23, 2026 and October 5, 2026 respectively.
| Parameter | HyTools | Site Survey |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (5 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 6 weeks — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 114 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | IMI Hydronic Engineering International SA | Recognize B.V. |
In-app purchases
HyTools
No in-app purchases
Site Survey
No in-app purchases
