Comparison

HVAC Pipe Sizer vs Baker HVAC 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 low-pressure gas piping systems by inputting flow, pressure drop, diameter, or velocity. Includes detailed gas and pipe properties, fitting data, and unit conversion.

Highlights
  • Low pressure gas pipe sizing
  • Input flow, pressure drop, diameter, or velocity
  • Calculate exact and nominal pipe diameters
  • Specify gas and pipe properties
  • Includes pipe fitting equivalent lengths
  • English and metric unit display
Features
Read full description

The "HVAC Pipe Sizer - Gas Low" application allows you to quickly size a simple low pressure (less than 1.5psi) gas piping system by inputting a number of piping and gas properties. You can specify the total gas flow in cuft/hr (CubicM/hr) and one of either pressure drop (in. wg or Pa), pipe internal diameter (inches) or gas velocity (ft/s) parameters. The results include both the exact and nominal pipe diameters and the calculated velocity and total pipe equivalent length. If you are analyzing an existing pipe system, there is an option to input the existing pipe internal diameter and one of either pressure drop or gas velocity parameters to derive the calculated gas flow and other remaining properties. You can specify additional parameters such as the type of gas, various properties of the gas, 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. The "HVAC Pipe Sizer - Gas Low" 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. All values can be displayed in English (IP) and Metric (SI) units. 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

Baker HVAC Pro+

This app provides HVAC/R professionals with on-the-go access to product information and essential tools. It features real-time order tracking, a duct calculator, warranty verification, and branch location details. Users can also search for parts, view technical documents, and receive special offer notifications.

Highlights
  • Real-time order status
  • Duct calculator
  • Product availability and pricing
  • Warranty registration verification
  • Parts and model search
  • Technical document access
  • Branch locator and directions
Features
Read full description

BAKER DISTRIBUTING COMPANY strives to make life as an HVAC/R Professional easier, saving you time and hassle through innovation. Our mobile app HVAC/R PRO provides access to product information and easy-to-use tools while on the go. * Now view real-time order status for all your orders (ORDER STATUS) * Duct calculator to help determine duct size, material and specifications for new installations and retrofits (CALCULATORS) * Sign in to link your online account to view prices, add to cart and check orders (SIGN IN) * See real-time availability for your preferred branch and other nearby Baker Distributing Company branches (PRODUCTS) * Search by system needs to find AHRI matched systems with real-time inventory and system pricing (AHRI) * Verify Limited Warranty Registrations while in the field (WARRANTY) * Search for an HVAC equipment model, view the parts list and superseded parts, check availability at Baker Distributing Company locations (PARTS LIST) * View Spec Sheets, Wiring Diagrams, Installation Guides, Consumer Literature, etc. for Baker Distributing Company Products (DOCUMENTS) * See nearby Baker Distributing Company locations, their Hours of Operation, get Directions, call the store (BRANCHES) * Receive Push Notifications of Special Offers & Promotions at Baker Distributing Company * Scan QR Code & UPC Bar Codes for fast product look ups * See Turn by Turn Driving Directions, through your favorite mapping app, to Baker Distributing Company locations * Light up attics, closets and basements while you work (FLASHLIGHT) * Also, the app now remembers your last 10 searches Our mission is to deliver the quality HVAC/R products you need, when you need them, and provide expert technical support. Our goal is to be your HVAC/R Supplier of Choice. We know you have a choice when buying all your HVAC/R related items. Thank you for trusting Baker Distributing Company. We are proud to have the opportunity to serve you.

Screenshots

HVAC Pipe Sizer4 screens
Baker HVAC Pro+4 screens

Verdict

The call

The clearest difference is price: Baker HVAC Pro+ at Free against HVAC Pipe Sizer's $4.99. Baker HVAC Pro+ also leads on update cadence (monthly vs every 9 months) and ratings volume (604 vs 2). HVAC Pipe Sizer's advantage is review sentiment (100% vs 85%). On rating, ads, in-app purchases 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

Baker HVAC Pro+ is free to download; HVAC Pipe Sizer costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for HVAC Pipe Sizer against 4.9 for Baker HVAC Pro+. That said, the two scores are not equally well evidenced: Baker HVAC Pro+ has 604 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 100% of HVAC Pipe Sizer's written reviews are positive against 85% of Baker HVAC Pro+'s.

UpkeepUpdate frequency

HVAC Pipe Sizer ships an update every 9 months, Baker HVAC Pro+ monthly. The most recent releases landed on October 27, 2026 and October 23, 2026 respectively.

Scorecard5 real differences · 5 level
HVAC Pipe Sizer versus Baker HVAC Pro+: the parameters behind the verdict, then further details
ParameterHVAC Pipe SizerBaker HVAC Pro+
Price$4.99Free — better
Rating5.0 (2 ratings) — better4.9 (604 ratings)
Positive reviews100.0% of reviews — better85.0% of reviews
Number of ratings2604 — better
Update frequencyEvery 9 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidAd-supported — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size1 MB166 MB
Age rating+44+
DeveloperCarmel Software CorporationWatsco, Inc.

Customer experience

HVAC Pipe Sizer

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Baker HVAC Pro+

All ratings604 ratings
Positive96.9%
Neutral1.8%
Negative1.3%
Written reviews20 reviews
Positive85.0%
Neutral5.0%
Negative10.0%

Bugs and requests

HVAC Pipe Sizer

Not enough reviews yet to summarise bugs or requests.

Baker HVAC Pro+

Reported bugs

2 issues
  • App not working anymore
  • Error messages

Requested features

2 requests
  • Add R448A to P/T calc
  • Tie account to app for pricing

In-app purchases

None

HVAC Pipe Sizer

No in-app purchases

None

Baker HVAC Pro+

No in-app purchases

Questions

Is HVAC Pipe Sizer free?
HVAC Pipe Sizer costs $4.99, with no in-app purchases.
Is Baker HVAC Pro+ free?
Baker HVAC Pro+ is free to download, with no in-app purchases.
Which has better reviews, HVAC Pipe Sizer or Baker HVAC Pro+?
HVAC Pipe Sizer is rated higher. HVAC Pipe Sizer averages 5.0 out of 5 from 2 ratings, while Baker HVAC Pro+ averages 4.9 from 604 ratings.
Do HVAC Pipe Sizer or Baker HVAC Pro+ have ads?
Neither HVAC Pipe Sizer nor Baker HVAC Pro+ shows ads.
Which is updated more often, HVAC Pipe Sizer or Baker HVAC Pro+?
HVAC Pipe Sizer ships an update every 9 months, and Baker HVAC Pro+ monthly. Most recently, HVAC Pipe Sizer was updated on October 27, 2026 and Baker HVAC Pro+ on October 23, 2026.

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