Comparison

HyTools vs h,x Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Hydronic calculator
  • Valve sizing and presetting
  • Radiator power estimation
  • Pipe sizing
  • Unit conversion
  • Pressure maintenance calculation
Features
Read 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.

About

h,x Calculator

This software calculates air condition changes during adiabatic or isothermal humidification processes. It determines air states before and after humidification, humidification power, and heating power. The app supports both metric and imperial units.

Highlights
  • Calculate air condition changes
  • Determine humidification power
  • Calculate heating power
  • Generate h,x diagram
  • Metric and imperial unit support
Features
Read full description

Software zur Berechnung von Zustandsänderungen der Luft bei adiabaten oder isothermen Befeuchtungsprozessen. Berechnet werden Luftzustände vor oder nach der Befeuchtung, die Befeuchtungsleistung, die Heizleistung (bei adiabater Luftbefeuchtung) sowie das der Berechnung zugrundeliegende h,x-Diagramm. Die Software kann eine Berechnung im metrischen wie auch im imperialen Einheitensystem durchführen.

Screenshots

HyTools4 screens
h,x Calculator4 screens

Verdict

The call

The clearest difference is update cadence: HyTools at every 6 weeks against h,x Calculator's every 4 months. h,x Calculator's advantage is iOS requirement (7.0 vs 15.0). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

HyTools ships an update every 6 weeks, h,x Calculator every 4 months. The most recent releases landed on September 28, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 8 level
HyTools versus h,x Calculator: the parameters behind the verdict, then further details
ParameterHyToolsh,x Calculator
PriceFreeFree
Rating4.0 (5 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 6 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.07.0 — better
Further details — not scored
Size114 MB27 MB
Age rating4+4+
DeveloperIMI Hydronic Engineering International SACondair GmbH

Customer experience

HyTools

All ratings5 ratings
Positive60.0%
Neutral20.0%
Negative20.0%
Written reviews8 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

h,x Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

HyTools

No in-app purchases

None

h,x Calculator

No in-app purchases

Questions

Is HyTools free?
HyTools is free to download, with no in-app purchases.
Is h,x Calculator free?
h,x Calculator is free to download, with no in-app purchases.
Do HyTools or h,x Calculator have ads?
Neither HyTools nor h,x Calculator shows ads.
Which is updated more often, HyTools or h,x Calculator?
HyTools ships an update every 6 weeks, and h,x Calculator every 4 months. Most recently, HyTools was updated on September 28, 2026 and h,x Calculator on October 11, 2026.

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