# Gas Pipe Sizing Calculator vs Sizing US/CA

The clearest difference is price: Sizing US/CA at Free against Gas Pipe Sizing Calculator's $1.99. Sizing US/CA also leads on update cadence (every 6 weeks vs every 13 months) and ratings volume (13 vs 4). Gas Pipe Sizing Calculator's advantage is rating (4.0 vs 3.2) and ads (none vs shown). On review sentiment, in-app purchases and device support there is nothing between them.

Sizing US/CA is free to download; Gas Pipe Sizing Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Gas Pipe Sizing Calculator holds the better App Store score, 4.0 against 3.2. Both are backed by a comparable volume of ratings — 4 and 13 respectively. Written reviews point the same way: 13% of Gas Pipe Sizing Calculator's written reviews are positive against 11% of Sizing US/CA's.

Gas Pipe Sizing Calculator ships an update every 13 months, Sizing US/CA every 6 weeks. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Gas Pipe Sizing Calculator | Sizing US/CA |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/gas-pipe-sizing-calculator/id596009129/reviews)** | [3.2 (13 ratings)](https://appshunter.io/ios/app/sizing-usca/id1420112805/reviews) |
| Number of ratings | 4 | **13** |
| Positive reviews | **13.3% of reviews** | 11.1% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 6 weeks** |
| Monetization | Paid | **Ad-supported** |
| Size | 0 MB | 27 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Connor Kelley](https://appshunter.io/developer/596009132) | [Gastite Products LLC](https://appshunter.io/developer/668653608) |

## What reviewers say

### Gas Pipe Sizing Calculator

[App page](https://appshunter.io/ios/app/gas-pipe-sizing-calculator/id596009129)

This utility app simplifies gas pipe sizing by performing calculations based on BTU load, run length, and gas type. It eliminates the need for manual chart and codebook referencing, providing the minimum required pipe size quickly.

**Highlights:** Calculates minimum gas pipe size, Input BTU load, Input longest run length, Select gas type (LP or Natural), Designed for low pressure (0.5psi)

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

**In-app purchases:** none


### Sizing US/CA

[App page](https://appshunter.io/ios/app/sizing-usca/id1420112805)

This utility app helps installers determine the correct size of flexible gas piping for their projects. It calculates the appropriate pipe size based on gas type, tubing length, supply pressure, and flow capacity. Users can also access installation guides and product information.

**Highlights:** Flexible gas pipe sizing, US and CA location selector, Automatic value adjustment, Certification card access, Installation guide viewer, Product search, Direct contact with developer

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Gas Pipe Sizing Calculator free?

Gas Pipe Sizing Calculator costs $1.99, with no in-app purchases.

### Is Sizing US/CA free?

Sizing US/CA is free to download, with no in-app purchases.

### Which has better reviews, Gas Pipe Sizing Calculator or Sizing US/CA?

Gas Pipe Sizing Calculator is rated higher. Gas Pipe Sizing Calculator averages 4.0 out of 5 from 4 ratings, while Sizing US/CA averages 3.2 from 13 ratings.

### Do Gas Pipe Sizing Calculator or Sizing US/CA have ads?

Sizing US/CA shows ads; Gas Pipe Sizing Calculator does not.

### Which is updated more often, Gas Pipe Sizing Calculator or Sizing US/CA?

Gas Pipe Sizing Calculator ships an update every 13 months, and Sizing US/CA every 6 weeks. Most recently, Gas Pipe Sizing Calculator was updated on October 15, 2026 and Sizing US/CA on October 16, 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.*