# HVAC Pipe Sizer vs Pipe Sizer

The clearest difference is price: HVAC Pipe Sizer at $4.99 against Pipe Sizer's $12.99. HVAC Pipe Sizer also leads on rating (5.0 vs 4.8). Pipe Sizer's advantage is ratings volume (10 vs 2). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

HVAC Pipe Sizer costs $4.99 and Pipe Sizer $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HVAC Pipe Sizer holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Pipe Sizer has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

HVAC Pipe Sizer ships an update every 9 months, Pipe Sizer every 17 months. The most recent releases landed on October 27, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | HVAC Pipe Sizer | Pipe Sizer |
| --- | --- | --- |
| Price | **$4.99** | $12.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hvac-pipe-sizer-gas-low/id341688321/reviews)** | [4.8 (10 ratings)](https://appshunter.io/ios/app/pipe-sizer-water/id1316033381/reviews) |
| Number of ratings | 2 | **10** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 17 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 2 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | +4 | 4+ |
| Developer | [Carmel Software Corporation](https://appshunter.io/developer/317970398) | [Pheinex, LLC](https://appshunter.io/developer/996932317) |

## 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


### Pipe Sizer

[App page](https://appshunter.io/ios/app/pipe-sizer-water/id1316033381)

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:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Pipe Sizer free?

HVAC Pipe Sizer costs $4.99, with no in-app purchases.

### Is Pipe Sizer free?

Pipe Sizer costs $12.99, with no in-app purchases.

### Which has better reviews, HVAC Pipe Sizer or Pipe Sizer?

HVAC Pipe Sizer is rated higher. HVAC Pipe Sizer averages 5.0 out of 5 from 2 ratings, while Pipe Sizer averages 4.8 from 10 ratings.

### 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 9 months, and Pipe Sizer every 17 months. Most recently, HVAC Pipe Sizer was updated on October 27, 2026 and Pipe Sizer on October 7, 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.*