# HVAC Pipe Sizer vs Steam Tables Pro

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.

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.

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.

## The numbers

| Metric | HVAC Pipe Sizer | Steam Tables Pro |
| --- | --- | --- |
| Price | $6.99 | **$4.99** |
| Positive reviews | **66.7% of reviews** | 26.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 1 MB | 28 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Carmel Software Corporation](https://appshunter.io/developer/317970398) | [Eduardo Almeida](https://appshunter.io/developer/906209752) |

## What reviewers say

### HVAC Pipe Sizer

[App page](https://appshunter.io/ios/app/hvac-pipe-sizer-steam/id336112747)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HVAC Equipment Locator | $9.99 | one-time |


### Steam Tables Pro

[App page](https://appshunter.io/ios/app/steam-tables-pro/id906209749)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


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