International Steam Tables

If you're an engineering student, this is the steam app you want. It includes compressed water properties too, which the other apps don't have. Almost all units available including mixing an matching of English and Standard units. Great app, I wish I had this when I took Thermo.

this app is one of my most valuable tools. perfect for steam plant work and power systems analysis. quick, easy to use, and beats the HELL out of doing table lookups with interpolations all day. one suggestion for improvement would be to include "thermodynamics" in the keywords list for AppStore searching. I almost didnt find this app? good thing I stumbled upon it.

Spot-checked against a copy of Keenan & Keyes (1969) with good agreement. I understand that the IAPWS-IF97 formulation gives slightly different results than the classic tables ... As the joke goes, if you're worried about the fourth significant digit, you're already in trouble! Nice and useable, fast results, and handy to have instead of a book taking up space. Possible suggestions for future versions: * please clarify I-P units (specify psia, for instance, instead of psi) * it was not immediately obvious how to get to saturation properties (use the p,x or t,x tabs and set quality to 1 for vapor and 0 for liquid), maybe if there was a quick toggle option that would help * take better advantage of the real estate on the iPad -- less scrolling or f, fg, and g saturation properties in a three-column table * provide a way to mix units -- e.g., enter units in I-P and get SI results without having to toggle the entry units as well, but this may add needless complexity * instead of verbose property descriptions consider the use of standard nomenclature (h instead of enthalpy, s instead of entropy, cp instead of isobaric heat capacity) with a touch to bring up verbose description or an option to switch between the two.