# Sizing US/CA vs Hathorn

The clearest difference is rating: Hathorn at 4.5 against Sizing US/CA's 3.2. Hathorn also leads on review sentiment (50% vs 11%) and ads (none vs shown). Sizing US/CA's advantage is ratings volume (13 vs 4) and iOS requirement (10.0 vs 13.0). On price, in-app purchases and device support there is nothing between them.

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

Hathorn holds the better App Store score, 4.5 against 3.2. Both are backed by a comparable volume of ratings — 13 and 4 respectively. Written reviews point the same way: 11% of Sizing US/CA's written reviews are positive against 50% of Hathorn's.

Sizing US/CA ships an update every 6 weeks, Hathorn every 8 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Sizing US/CA | Hathorn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (13 ratings)](https://appshunter.io/ios/app/sizing-usca/id1420112805/reviews) | **[4.5 (4 ratings)](https://appshunter.io/ios/app/hathorn-v4/id1608216018/reviews)** |
| Number of ratings | **13** | 4 |
| Positive reviews | 11.1% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Monetization | Ad-supported | **Free** |
| Size | 27 MB | 3 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Gastite Products LLC](https://appshunter.io/developer/668653608) | [M.I.S. Electronics Inc.](https://appshunter.io/developer/1608216020) |

## 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


### Hathorn

[App page](https://appshunter.io/ios/app/hathorn-v4/id1608216018)

Connect to Wi-Fi enabled cameras and stream live video directly to your mobile device. Record footage and optionally capture audio for comprehensive documentation. This is the official application from Hathorn Corporation.

**Highlights:** Connect to Wi-Fi enabled cameras, Stream live video, Record video footage, Optional audio recording, Official Hathorn Corporation app

**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 Hathorn free?

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

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

Hathorn is rated higher. Sizing US/CA averages 3.2 out of 5 from 13 ratings, while Hathorn averages 4.5 from 4 ratings.

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

Sizing US/CA shows ads; Hathorn does not.

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

Sizing US/CA ships an update every 6 weeks, and Hathorn every 8 days. Most recently, Sizing US/CA was updated on October 24, 2026 and Hathorn on October 24, 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.*