# HVAC Pipe Sizer vs Baker HVAC Pro+

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.

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.

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.

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.

## The numbers

| Metric | HVAC Pipe Sizer | Baker HVAC Pro+ |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hvac-pipe-sizer-gas-low/id341688321/reviews)** | [4.9 (604 ratings)](https://appshunter.io/ios/app/baker-hvac-pro-plus/id511192312/reviews) |
| Number of ratings | 2 | **604** |
| Positive reviews | **100.0% of reviews** | 85.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | Paid | **Ad-supported** |
| Size | 1 MB | 166 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Carmel Software Corporation](https://appshunter.io/developer/317970398) | [Watsco, Inc.](https://appshunter.io/developer/510378878) |

## What reviewers say

### HVAC Pipe Sizer

[App page](https://appshunter.io/ios/app/hvac-pipe-sizer-gas-low/id341688321)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Baker HVAC Pro+

[App page](https://appshunter.io/ios/app/baker-hvac-pro-plus/id511192312)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Time saver
- 👍 Easy to find information
- 👍 Great for ordering parts
- 👍 Helpful for checking stock
- 👍 Useful for customer warranties

**What reviewers complain about**

- 🐛 Error messages
- 🐛 App not working
- ⚠️ Too many alerts
- ⚠️ Annoying alerts

**Reported bugs**

- App not working anymore
- Error messages

**Requested features**

- Add R448A to P/T calc
- Tie account to app for pricing


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*