# UEi HUB vs Sizing US/CA

The clearest difference is rating: Sizing US/CA at 3.2 against UEi HUB's 1.7. Sizing US/CA also leads on iOS requirement (10.0 vs 15.6). UEi HUB's advantage is ads (none vs shown) and update cadence (every 9 days vs every 6 weeks). On price, review sentiment, ratings volume and in-app purchases 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 1.7. Both are backed by a comparable volume of ratings — 11 and 13 respectively. Written reviews split almost evenly too, at 12% and 11% positive.

UEi HUB ships an update every 9 days, Sizing US/CA every 6 weeks. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | UEi HUB | Sizing US/CA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (11 ratings)](https://appshunter.io/ios/app/uei-hub/id1358221837/reviews) | **[3.2 (13 ratings)](https://appshunter.io/ios/app/sizing-usca/id1420112805/reviews)** |
| Number of ratings | 11 | **13** |
| Positive reviews | **11.5% of reviews** | 11.1% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 6 weeks |
| Monetization | **Free** | Ad-supported |
| Size | 108 MB | 27 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Kane Asia Inc.](https://appshunter.io/developer/1542732944) | [Gastite Products LLC](https://appshunter.io/developer/668653608) |

## What reviewers say

### UEi HUB

[App page](https://appshunter.io/ios/app/uei-hub/id1358221837)

This app connects to specialized testing tools via Bluetooth to display real-time measurements. It calculates and presents key refrigerant, air, and vacuum parameters, allowing users to monitor critical system data and customize their view for efficiency.

**Highlights:** Bluetooth connectivity to HUB test kits, Real-time tool value display, Refrigerant, air, and vacuum parameter calculation, Superheat and Subcooling monitoring, Customizable refrigerant favorites list, Swipe interface for parameter views, Drag and drop connection process

**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 UEi HUB free?

UEi HUB is free to download, 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, UEi HUB or Sizing US/CA?

Sizing US/CA is rated higher. UEi HUB averages 1.7 out of 5 from 11 ratings, while Sizing US/CA averages 3.2 from 13 ratings.

### Do UEi HUB or Sizing US/CA have ads?

Sizing US/CA shows ads; UEi HUB does not.

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

UEi HUB ships an update every 9 days, and Sizing US/CA every 6 weeks. Most recently, UEi HUB was updated on October 22, 2026 and Sizing US/CA 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.*