# UEi DTHA2 vs EWC Controls, LLC

The clearest difference is review sentiment: EWC Controls, LLC at 100% against UEi DTHA2's 50%. EWC Controls, LLC also leads on rating (5.0 vs 4.0) and update cadence (every 9 days vs every 7 months). UEi DTHA2's advantage is iOS requirement (12.0 vs 16.4). On price, ratings volume, ads 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.

EWC Controls, LLC holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews point the same way: 50% of UEi DTHA2's written reviews are positive against 100% of EWC Controls, LLC's.

UEi DTHA2 ships an update every 7 months, EWC Controls, LLC every 9 days. The most recent releases landed on July 30, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | UEi DTHA2 | EWC Controls, LLC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/uei-dtha2/id1452986649/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ewc-controls-llc/id1456560692/reviews)** |
| Number of ratings | 4 | **5** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 9 days** |
| Monetization | Free | Free |
| Size | 17 MB | 38 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kane Asia Inc.](https://appshunter.io/developer/1542732944) | [EWC Controls, Inc.](https://appshunter.io/developer/1456560691) |

## What reviewers say

### UEi DTHA2

[App page](https://appshunter.io/ios/app/uei-dtha2/id1452986649)

This app connects to a wireless adapter to measure airflow velocity, volumetric flow, temperature, and relative humidity. It allows adjustments for ducting and offers averaging options for readings.

**Highlights:** Measure airflow velocity, Measure volumetric flow, Measure temperature, Measure relative humidity, Adjust for ducting, Time or point averaging

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

**In-app purchases:** none


### EWC Controls, LLC

[App page](https://appshunter.io/ios/app/ewc-controls-llc/id1456560692)

This app helps EWC contractors determine their zoning system requirements. It features a Bypass Calculator to recommend damper models and sizes, and a Control Panel Finder to suggest compatible control panels. Discover products and features to assist in setting up your zoning system.

**Highlights:** Bypass Damper Calculator, Control Panel Finder, Product Discovery, Zoning System Setup Assistance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is UEi DTHA2 free?

UEi DTHA2 is free to download, with no in-app purchases.

### Is EWC Controls, LLC free?

EWC Controls, LLC is free to download, with no in-app purchases.

### Which has better reviews, UEi DTHA2 or EWC Controls, LLC?

EWC Controls, LLC is rated higher. UEi DTHA2 averages 4.0 out of 5 from 4 ratings, while EWC Controls, LLC averages 5.0 from 5 ratings.

### Do UEi DTHA2 or EWC Controls, LLC have ads?

Neither UEi DTHA2 nor EWC Controls, LLC shows ads.

### Which is updated more often, UEi DTHA2 or EWC Controls, LLC?

UEi DTHA2 ships an update every 7 months, and EWC Controls, LLC every 9 days. Most recently, UEi DTHA2 was updated on July 30, 2026 and EWC Controls, LLC on September 14, 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.*