# Pipe Sizer vs Duct Construction

The clearest difference is review sentiment: Pipe Sizer at 100% against Duct Construction's 0%. Pipe Sizer also leads on rating (4.8 vs 1.0) and ratings volume (10 vs 1). Duct Construction's advantage is price ($0.99 vs $12.99). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Pipe Sizer costs $12.99 and Duct Construction $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pipe Sizer holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Pipe Sizer has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Pipe Sizer's written reviews are positive against 0% of Duct Construction's.

Pipe Sizer ships an update every 17 months, Duct Construction every 10 months. The most recent releases landed on October 7, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Pipe Sizer | Duct Construction |
| --- | --- | --- |
| Price | $12.99 | **$0.99** |
| Rating | **[4.8 (10 ratings)](https://appshunter.io/ios/app/pipe-sizer-water/id1316033381/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/duct-construction/id6443518338/reviews) |
| Number of ratings | **10** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 10 months** |
| Monetization | Paid | Paid |
| Size | 2 MB | 1 MB |
| Requires iOS | **16.6** | 17.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pheinex, LLC](https://appshunter.io/developer/996932317) | [Wassim Murr](https://appshunter.io/developer/1474939474) |

## What reviewers say

### 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


### Duct Construction

[App page](https://appshunter.io/ios/app/duct-construction/id6443518338)

This app helps determine duct construction and reinforcement options based on duct size and system pressure class. It provides condensed lists of suitable options, saving time spent on manual calculations and table lookups. Results are based on industry standards for galvanized steel duct sheets.

**Highlights:** Duct size range from 2" to 120", Pressure classes up to 4 in.wg, Calculates duct weights per linear foot, Determines required duct gauge and reinforcement spacing, Clear illustrations for reinforcement types, Simple and effective UI design

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

**In-app purchases:** none


## Frequently asked questions

### Is Pipe Sizer free?

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

### Is Duct Construction free?

Duct Construction costs $0.99, with no in-app purchases.

### Which has better reviews, Pipe Sizer or Duct Construction?

Pipe Sizer is rated higher. Pipe Sizer averages 4.8 out of 5 from 10 ratings, while Duct Construction averages 1.0 from 1 ratings.

### Do Pipe Sizer or Duct Construction have ads?

Neither Pipe Sizer nor Duct Construction shows ads.

### Which is updated more often, Pipe Sizer or Duct Construction?

Pipe Sizer ships an update every 17 months, and Duct Construction every 10 months. Most recently, Pipe Sizer was updated on October 7, 2026 and Duct Construction on September 25, 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.*