# HVAC Pipe Sizer Plus vs Heat Exchanger Performance

The clearest difference is review sentiment: HVAC Pipe Sizer Plus at 67% against Heat Exchanger Performance's 0%. Heat Exchanger Performance's advantage is price ($4.99 vs $13.99) and update cadence (every 6 months vs every 15 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

HVAC Pipe Sizer Plus costs $13.99 and Heat Exchanger Performance $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HVAC Pipe Sizer Plus ships an update every 15 months, Heat Exchanger Performance every 6 months. The most recent releases landed on October 27, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | HVAC Pipe Sizer Plus | Heat Exchanger Performance |
| --- | --- | --- |
| Price | $13.99 | **$4.99** |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/hvac-pipe-sizer-plus/id352069594/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 6 months** |
| Monetization | Paid | Paid |
| Size | 2 MB | 1 MB |
| Requires iOS | 17.0 | **14.3** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | +4 | 4+ |
| Developer | [Carmel Software Corporation](https://appshunter.io/developer/317970398) | [Kaup Shenoy Associates](https://appshunter.io/developer/460148822) |

## What reviewers say

### HVAC Pipe Sizer Plus

[App page](https://appshunter.io/ios/app/hvac-pipe-sizer-plus/id352069594)

This utility app combines three specialized pipe sizing tools for HVAC systems: liquid, steam, and gas. It offers flexible input options, unit conversions, and an equipment locator for comprehensive HVAC design.

**Highlights:** Liquid pipe sizing, Steam pipe sizing with steam table calculator, Gas pipe sizing (low and high pressure), HVAC Equipment Locator, Slider controls for input adjustments, English and Metric unit display

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Heat Exchanger Performance

[App page](https://appshunter.io/ios/app/heat-exchanger-performance/id499929799)

Evaluate shell and tube heat exchanger performance, including overall heat transfer U-coefficient and maintenance needs based on performance changes. Save and reload multiple heat exchanger data sets for continuous monitoring.

**Highlights:** Evaluate overall heat transfer U-coefficient, Determine maintenance requirements, Save and reload multiple heat exchanger data, Select common industrial fluids, Create custom fluid properties, Edit data in SI and USCS units, Compute heat transfer area

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Pipe Sizer Plus free?

HVAC Pipe Sizer Plus costs $13.99, with no in-app purchases.

### Is Heat Exchanger Performance free?

Heat Exchanger Performance costs $4.99, with no in-app purchases.

### Do HVAC Pipe Sizer Plus or Heat Exchanger Performance have ads?

Neither HVAC Pipe Sizer Plus nor Heat Exchanger Performance shows ads.

### Which is updated more often, HVAC Pipe Sizer Plus or Heat Exchanger Performance?

HVAC Pipe Sizer Plus ships an update every 15 months, and Heat Exchanger Performance every 6 months. Most recently, HVAC Pipe Sizer Plus was updated on October 27, 2026 and Heat Exchanger Performance 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.*