# UEi HUB vs Arzel Pro

The clearest difference is rating: Arzel Pro at 5.0 against UEi HUB's 1.7. UEi HUB's advantage is update cadence (every 2 weeks vs every 3 months) and ratings volume (11 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Arzel Pro holds the better App Store score, 5.0 against 1.7. That said, the two scores are not equally well evidenced: UEi HUB has 11 ratings behind it against 2, so its average is the more settled of the two.

UEi HUB ships an update every 2 weeks, Arzel Pro every 3 months. The most recent releases landed on November 10, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | UEi HUB | Arzel Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (11 ratings)](https://appshunter.io/ios/app/uei-hub/id1358221837/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/arzel-pro/id6670562268/reviews)** |
| Number of ratings | **11** | 2 |
| Positive reviews | 11.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 108 MB | 11 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kane Asia Inc.](https://appshunter.io/developer/1542732944) | [Arzel Technology, Inc.](https://appshunter.io/developer/644309533) |

## What reviewers say

### UEi HUB

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

This utility app connects to specific test kits via Bluetooth to display real-time tool values. It calculates and shows refrigerant, air, and vacuum parameters in your chosen units, with features for monitoring superheat and subcooling. Easily switch between different measurements and manage refrigerant lists for efficient job site data collection.

**Highlights:** Bluetooth connectivity to HUB test kits, Real-time tool value display, Refrigerant, air, and vacuum parameter calculations, Superheat and subcooling monitoring, Customizable refrigerant favorites list, Intuitive swipe interface for measurement switching, Drag and drop connection process

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

**In-app purchases:** none


### Arzel Pro

[App page](https://appshunter.io/ios/app/arzel-pro/id6670562268)

This app allows HVAC contractors to configure and manage a universal zoning panel. It offers easy setup, diagnostics, and software updates via a Bluetooth connection. Homeowners control the system through installed thermostats.

**Highlights:** App-controlled zoning panel, Create up to 16 zones, One-tap equipment settings, Bluetooth configuration, System diagnostics, Software updates

**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 Arzel Pro free?

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

### Which has better reviews, UEi HUB or Arzel Pro?

Arzel Pro is rated higher. UEi HUB averages 1.7 out of 5 from 11 ratings, while Arzel Pro averages 5.0 from 2 ratings.

### Do UEi HUB or Arzel Pro have ads?

Neither UEi HUB nor Arzel Pro shows ads.

### Which is updated more often, UEi HUB or Arzel Pro?

UEi HUB ships an update every 2 weeks, and Arzel Pro every 3 months. Most recently, UEi HUB was updated on November 10, 2026 and Arzel Pro on October 30, 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.*