Comparison

HVAC Pipe Sizer vs Steam Tables Pro

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

Head to head
About

HVAC Pipe Sizer

Quickly size steam pipe systems by inputting piping and steam properties. Includes a steam table calculator and HVAC equipment locator. Supports English and metric units.

Highlights
  • Steam pipe sizing
  • Steam table calculator
  • HVAC Equipment Locator
  • English/metric unit selection
  • Pipe fitting database
  • Slider controls for input
Features
Read full description

The "HVAC Pipe Sizer - Steam" application allows you to quickly size a simple steam pipe system by inputting a number of piping and steam properties. This app is a universal app that works on both the iPhone and iPad and adjusts its screen size accordingly. It also includes a bonus steam table calculator that allows you to specify 2 parameters for either saturated or superheated steam and display the remaining steam properties. In the pipe sizing module, you can specify the total steam flow in lbs/hr (or kgs/hr), the initial steam pressure (psia or psig) and one of either pressure loss (psi/100ft), pipe internal diameter (inches) or steam velocity (ft/s) parameters. The results include both the exact and nominal pipe diameters and the calculated velocity and total pressure loss. If you are analyzing an existing steam pipe system, there is an option to input the existing pipe internal diameter, initial steam pressure and one of either pressure loss or steam velocity parameters to derive the calculated steam flow and other remaining properties. You can specify additional parameters such as whether the steam is saturated or superheated (with accompanying temperature), the pipe material type, the total length of pipe, quantities for up to 11 different types of pipe fittings, and much more. You can also choose to display values in either english or metric units. The bonus steam table module is one-of-a-kind. It allows you to easily view results by selecting a variety of input parameters and easily altering these inputs using the slider control. This is perfect for students who often rely upon the more static printed steam tables in engineering text. This application includes built-in pipe fitting equivalent length and nominal pipe sizing tables for a wide variety of pipe material types and diameters. This application uses slider controls that allow you to quickly increment or decrement the input values and immediately observe the calculated results. You can also manually input exact values. This app now includes the HVAC Equipment Locator. Click here for details: http://bit.ly/1yTq539 This application was designed by Carmel Software Corporation, a leader in HVAC design software since 1995. In fact, Autodesk (the makers of AutoCAD) acquired our load calculation software and incorporated it into their leading 3D modeling software called Revit. We also offer the following additional applications for the iPhone/iPad: 1. HVAC Duct Sizer 2. HVAC Pipe Sizer – Gas Low Pressure 3. HVAC Pipe Sizer - Gas High Pressure 4. HVAC Pipe Sizer – Liquid 5. HVAC Pipe Sizer – Steam 6. Steam Tables 7. Psychrometric Plus 8. Psychrometric LT 9. HVAC Pipe Sizer Plus 10. HVAC Pipe Sizer Gas Plus 11. HVAC Toolkit 12. HVAC Toolkit Ultimate 13. HVAC Residential Load Calcs 14. HVAC Load Plus 15. HVAC Equipment Locator 16. ASHRAE Duct Fitting Database 17. ASHRAE 62.1 Ventilation Load Calcs 18. HVAC Psych HD 19. HVAC ResLoad-J 20. HVAC Residential Load Calcs HD

About

Steam Tables Pro

This app calculates a comprehensive range of thermodynamic properties for steam using the IAPWS-97 equations. It allows calculations based on various input parameters like pressure, temperature, enthalpy, entropy, and quality, and displays results in charts.

Highlights
  • Calculates properties from pressure and temperature
  • Calculates properties from pressure and enthalpy
  • Calculates properties from pressure and entropy
  • Calculates properties from pressure and quality
  • Calculates properties from saturated temperature and quality
  • Calculates properties from enthalpy and entropy
  • Displays results in T-s, P-h, and H-s charts
  • Supports multiple units
Features
Read full description

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.

Screenshots

HVAC Pipe Sizer4 screens
Steam Tables Pro4 screens

Verdict

The call

The clearest difference is review sentiment: HVAC Pipe Sizer at 67% against Steam Tables Pro's 26%. Steam Tables Pro's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 9 months). On ads, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

HVAC Pipe Sizer costs $6.99 and Steam Tables Pro $4.99 up front. HVAC Pipe Sizer sells 1 one-off in-app purchase. Steam Tables Pro asks for nothing beyond the download.

UpkeepUpdate frequency

HVAC Pipe Sizer ships an update every 9 months, Steam Tables Pro every 2 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 3 level
HVAC Pipe Sizer versus Steam Tables Pro: the parameters behind the verdict, then further details
ParameterHVAC Pipe SizerSteam Tables Pro
Price$6.99$4.99 — better
Positive reviews66.7% of reviews — better26.1% of reviews
Update frequencyEvery 9 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size1 MB28 MB
Age rating4+4+
DeveloperCarmel Software CorporationEduardo Almeida

Customer experience

HVAC Pipe Sizer

Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Steam Tables Pro

Written reviews23 reviews
Positive26.1%
Neutral4.3%
Negative69.6%

In-app purchases

1 purchases

HVAC Pipe Sizer

One-time1
  • HVAC Equipment Locator$9.99
None

Steam Tables Pro

No in-app purchases

Questions

Is HVAC Pipe Sizer free?
HVAC Pipe Sizer costs $6.99, and also offers in-app purchases.
Is Steam Tables Pro free?
Steam Tables Pro costs $4.99, with no in-app purchases.
Do HVAC Pipe Sizer or Steam Tables Pro have ads?
Neither HVAC Pipe Sizer nor Steam Tables Pro shows ads.
Which is updated more often, HVAC Pipe Sizer or Steam Tables Pro?
HVAC Pipe Sizer ships an update every 9 months, and Steam Tables Pro every 2 months. Most recently, HVAC Pipe Sizer was updated on October 27, 2026 and Steam Tables Pro on October 24, 2026.

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