# UEi HUB vs Piper Inventory

The clearest difference is review sentiment: Piper Inventory at 100% against UEi HUB's 12%. Piper Inventory also leads on rating (4.2 vs 1.7). UEi HUB's advantage is in-app purchases (none vs 2) and update cadence (every 9 days vs every 6 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Piper Inventory sells 2 in-app purchases, starting at $22.00 per month. UEi HUB asks for nothing beyond the download.

Piper Inventory holds the better App Store score, 4.2 against 1.7. Both are backed by a comparable volume of ratings — 11 and 5 respectively. Written reviews point the same way: 12% of UEi HUB's written reviews are positive against 100% of Piper Inventory's.

UEi HUB ships an update every 9 days, Piper Inventory every 6 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | UEi HUB | Piper Inventory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (11 ratings)](https://appshunter.io/ios/app/uei-hub/id1358221837/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/piper-inventory/id6469746367/reviews)** |
| Number of ratings | **11** | 5 |
| Positive reviews | 11.5% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 6 months |
| Monetization | **Free** | Subscription |
| Size | 108 MB | 17 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kane Asia Inc.](https://appshunter.io/developer/1542732944) | [Piper Diagnostics](https://appshunter.io/developer/1712591819) |

## 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


### Piper Inventory

[App page](https://appshunter.io/ios/app/piper-inventory/id6469746367)

Manage your warehouse or mobile workstation inventory on the go. Easily add items, set minimum quantities, and use a Bluetooth barcode scanner to track stock. Syncs between devices for collaboration and generates restock lists.

**Highlights:** On-the-go inventory management, Bluetooth barcode scanner support, Set minimum stock quantities, Restock list generation, Inventory history tracking, Multi-location account management, Spreadsheet upload for setup

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $22.00 | per month |
| Annual | $199.00 | per year |


## Frequently asked questions

### Is UEi HUB free?

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

### Is Piper Inventory free?

Piper Inventory is free to download, with in-app purchases available.

### Which has better reviews, UEi HUB or Piper Inventory?

Piper Inventory is rated higher. UEi HUB averages 1.7 out of 5 from 11 ratings, while Piper Inventory averages 4.2 from 5 ratings.

### Do UEi HUB or Piper Inventory have ads?

Neither UEi HUB nor Piper Inventory shows ads.

### Which is updated more often, UEi HUB or Piper Inventory?

UEi HUB ships an update every 9 days, and Piper Inventory every 6 months. Most recently, UEi HUB was updated on November 2, 2026 and Piper Inventory 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.*