HVAC Pipe Sizer vs Xylem X
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Steam pipe sizing
- Steam table calculator
- HVAC Equipment Locator
- English/metric unit selection
- Pipe fitting database
- Slider controls for input
Read full descriptionHide 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
Xylem X
This app enables remote control and monitoring of Hydrovar X products. Users can add devices, perform commissioning, gather operational data, and receive alerts. It also facilitates sharing configuration reports and updating device firmware.
- Add and group connected units
- Remote monitoring and control
- Gather alarms and errors
- Create configuration reports
- Perform firmware updates
Read full descriptionHide full description
Xylem X it’s the mobile app for remote control, information monitoring and product insights for Hydrovar X product family. This app would allow you to add devices to your profile, perform the commissioning of the device directly from your smartphone, gather alarms and operating data. Snapshot of features available in the app: • Add of connected units and grouping them for plant. • Remote monitoring and control of Hydrovar X products, gather alarms and errors. • Create configuration reports, including operating state and error log, enabling you to share it with assistance and/or product support. • Perform firmware update to access new functionalities or improve the performances.
Screenshots
Verdict
The clearest difference is price: Xylem X at Free against HVAC Pipe Sizer's $6.99. Xylem X also leads on in-app purchases (none vs 1) and update cadence (every 4 months vs every 9 months). On ads 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
Xylem X is free to download; HVAC Pipe Sizer costs $6.99 up front. HVAC Pipe Sizer sells 1 one-off in-app purchase. Xylem X asks for nothing beyond the download.
HVAC Pipe Sizer ships an update every 9 months, Xylem X every 4 months. The most recent releases landed on October 27, 2026 and October 4, 2026 respectively.
| Parameter | HVAC Pipe Sizer | Xylem X |
|---|---|---|
| Price | $6.99 | Free — better |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 9 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Carmel Software Corporation | Xylem Inc. |
Customer experience
HVAC Pipe Sizer
Xylem X
In-app purchases
HVAC Pipe Sizer
- HVAC Equipment Locator$9.99
Xylem X
No in-app purchases
Questions
Is HVAC Pipe Sizer free?
Is Xylem X free?
Do HVAC Pipe Sizer or Xylem X have ads?
Which is updated more often, HVAC Pipe Sizer or Xylem X?
Other comparisons















