# Sizing US/CA vs myNAVAC

The clearest difference is rating: Sizing US/CA at 3.2 against myNAVAC's 2.3. Sizing US/CA also leads on iOS requirement (10.0 vs 12.0). myNAVAC's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sizing US/CA holds the better App Store score, 3.2 against 2.3. Both are backed by a comparable volume of ratings — 13 and 36 respectively. Written reviews complicate that: 11% of Sizing US/CA's written reviews are positive against 16% of myNAVAC's, so the app with the better star average is not the one people write more warmly about.

Sizing US/CA ships an update every 6 weeks, myNAVAC every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Sizing US/CA | myNAVAC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (13 ratings)](https://appshunter.io/ios/app/sizing-usca/id1420112805/reviews)** | [2.3 (36 ratings)](https://appshunter.io/ios/app/mynavac/id6459829747/reviews) |
| Number of ratings | 13 | **36** |
| Positive reviews | 11.1% of reviews | **16.1% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 27 MB | 137 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Gastite Products LLC](https://appshunter.io/developer/668653608) | [NAVAC Inc.](https://appshunter.io/developer/1700369128) |

## What reviewers say

### 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


### myNAVAC

[App page](https://appshunter.io/ios/app/mynavac/id6459829747)

Connect to and manage NAVAC brand IoT measurement devices via Bluetooth. View real-time data, control settings remotely, and record measurements. Analyze data with process curves and tables, then export reports in Excel or PDF.

**Highlights:** Bluetooth device connection, Real-time data display, Remote control and settings, Data recording and storage, Process curve and table view, Exportable measurement reports (Excel/PDF)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sizing US/CA free?

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

### Is myNAVAC free?

myNAVAC is free to download, with no in-app purchases.

### Which has better reviews, Sizing US/CA or myNAVAC?

Sizing US/CA is rated higher. Sizing US/CA averages 3.2 out of 5 from 13 ratings, while myNAVAC averages 2.3 from 36 ratings.

### Do Sizing US/CA or myNAVAC have ads?

Sizing US/CA shows ads; myNAVAC does not.

### Which is updated more often, Sizing US/CA or myNAVAC?

Sizing US/CA ships an update every 6 weeks, and myNAVAC every 3 weeks. Most recently, Sizing US/CA was updated on November 2, 2026 and myNAVAC on November 3, 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.*