Comparison

HVAC Pipe Sizer vs Pipe Sizer

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

Calculate pipe sizes for liquid systems, including hot and chilled water. Input flow rate, head loss, diameter, or velocity to determine other properties. Supports various liquids, pipe materials, and fittings, with English or metric units.

Highlights
  • Liquid pipe sizing
  • Hydronic system calculations
  • Input flow, head loss, diameter, or velocity
  • Calculate fluid flow and head loss
  • Supports various liquids and pipe materials
  • English and metric unit options
  • Email results
Features
Read full description

The "HVAC Pipe Sizer - Liquid" application allows you to quickly size a simple pipe system by inputting a number of piping and liquid properties, including hot and chilled water (hydronic). This app is a universal app that works on both the iPhone and iPad and adjusts its screen size accordingly. This app now includes the HVAC Equipment Locator. Click here for details: http://bit.ly/1yTq539 You can specify the total fluid flow in GPM (or L/s) and one of either unit head loss (ft/100ft), pipe internal diameter (inches) or fluid velocity (ft/s) parameters. The results include both the exact and nominal pipe diameters and the calculated velocity and total head loss. If you are analyzing an existing pipe system, there is an option to input the existing pipe internal diameter and one of either unit head loss or fluid velocity parameters to derive the calculated fluid flow and other remaining properties. You can specify additional parameters such as the type of liquid, various properties of the liquid, 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. 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. The app allows you to email inputs and results once you have completed an analysis. This app now includes the HVAC Equipment Locator. Click here for details: http://bit.ly/1yTq539 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

Pipe Sizer

This app helps water piping system engineers and designers quickly and accurately design and analyze piping systems. It offers direct input for flow, friction, or velocity, with live calculation updates and support for various units and pipe materials.

Highlights
  • Quickly size new piping systems
  • Analyze existing piping systems
  • Direct input for flow, friction, or velocity
  • Live calculation updates
  • Supports SI and IP units
  • Works with steel, copper, and PVC pipes
  • Includes fluid data for water and glycols
Features
Read full description

The Pipe Sizer App for iOS has been designed to help water piping system engineers and designers quickly and accurately design new piping systems, and analyze existing pipping systems. Quickly size new and analyze existing piping systems on your iPhone or iPad. • Enter flow, friction rate or velocity numbers directly for maximum accuracy. • Use the sliders for quick calculations. • Calculations update live, giving you quick feedback on your design. • Lock flow rate, friction rate or velocity to size the pipe based on your input criteria. • Works for both SI and IP units. • Supports steel, copper and PVC piping. • Includes fluid data for: • Water • Ethylene glycol (10-90% by volume) • Propylene glycol (10-90% by volume) Put your plastic sizing wheel in the drawer. Have a modern design tool with you wherever you go. Note: This application (App) is provided for use by qualified piping system engineers and designers and is not a substitute for appropriate design services. When in doubt, contact a design professional.

Screenshots

HVAC Pipe Sizer4 screens
Pipe Sizer2 screens

Verdict

The call

The clearest difference is price: HVAC Pipe Sizer at $4.99 against Pipe Sizer's $12.99. HVAC Pipe Sizer also leads on update cadence (every 6 months vs every 17 months) and chart position (#174 vs unranked). Pipe Sizer's advantage is in-app purchases (none vs 1) and review sentiment (100% vs 71%). On ads, monetization model, device support and iOS requirement 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 $4.99 and Pipe Sizer $12.99 up front. HVAC Pipe Sizer sells 1 one-off in-app purchase. Pipe Sizer asks for nothing beyond the download.

UpkeepUpdate frequency

HVAC Pipe Sizer ships an update every 6 months, Pipe Sizer every 17 months. The most recent releases landed on September 9, 2026 and September 20, 2026 respectively.

Scorecard5 real differences · 6 level
HVAC Pipe Sizer versus Pipe Sizer: the parameters behind the verdict, then further details
ParameterHVAC Pipe SizerPipe Sizer
Price$4.99 — better$12.99
Rating—4.8 (10 ratings) — better
Positive reviews71.4% of reviews100.0% of reviews — better
Number of ratings—10 — better
Update frequencyEvery 6 months — betterEvery 17 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
Best chart rank#174 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.6 — better16.6
Further details — not scored
Size16 MB2 MB
Age rating4+4+
DeveloperCarmel Software CorporationPheinex, LLC

Customer experience

HVAC Pipe Sizer

Written reviews7 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

Pipe Sizer

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

HVAC Pipe Sizer

One-time1
  • HVAC Equipment Locator$9.99
None

Pipe Sizer

No in-app purchases

Questions

Is HVAC Pipe Sizer free?
HVAC Pipe Sizer costs $4.99, and also offers in-app purchases.
Is Pipe Sizer free?
Pipe Sizer costs $12.99, with no in-app purchases.
Do HVAC Pipe Sizer or Pipe Sizer have ads?
Neither HVAC Pipe Sizer nor Pipe Sizer shows ads.
Which is updated more often, HVAC Pipe Sizer or Pipe Sizer?
HVAC Pipe Sizer ships an update every 6 months, and Pipe Sizer every 17 months. Most recently, HVAC Pipe Sizer was updated on September 9, 2026 and Pipe Sizer on September 20, 2026.

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