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Where this app stands in Poland, updated 21 Oct 2026
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Version 7.0.0 brings a refreshed interface and a new learning section. • Updated calculator, results, records, charts and unit selectors. • Native Liquid Glass controls on supported iOS versions. • A built-in user guide and thermodynamics tutorial, available offline in English and Portuguese. • Worked boiler, turbine and throttling-valve examples with T-s diagrams, plus a P-h diagram for the valve. • Boiler superheating and real turbine isentropic efficiency explained with calculated examples. • Clear absolute-pressure unit labels, such as bar(a). • Usability and performance improvements.
Calculate water and steam properties with the IAPWS-IF97 equations. Choose six input combinations: pressure and temperature (p·T), pressure and enthalpy (p·h), pressure and entropy (p·s), pressure and quality (p·x), temperature and quality (T·x), or enthalpy and entropy (h·s). Find absolute pressure, temperature, enthalpy, entropy, vapor quality, specific volume, internal energy, density, and thermodynamic region. Explore heat capacities, speed of sound, the Cp/Cv ratio, vapor volume fraction, and transport properties. Save states to compare results and plot points on T–s, p–h, and h–s diagrams. Choose the units you use in study or work. Pressure units explicitly indicate absolute pressure, such as bar(a). Learn inside the app with a usage guide, essential concepts, explanations of each property, and worked examples for boilers, turbines, and valves. Explore boiler superheating, turbine isentropic efficiency, and constant enthalpy during throttling, with T–s and p–h diagrams. The calculator, guide, and tutorial are available offline in English and Portuguese.