# UEi DTHA2 vs Azure ECM

The clearest difference is review sentiment: Azure ECM at 100% against UEi DTHA2's 50%. Azure ECM also leads on update cadence (every 2 months vs every 7 months) and rating (4.2 vs 4.0). 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.

Azure ECM holds the better App Store score, 4.2 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 Azure ECM's.

UEi DTHA2 ships an update every 7 months, Azure ECM every 2 months. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | UEi DTHA2 | Azure ECM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/uei-dtha2/id1452986649/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/azure-ecm/id6443461253/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 2 months** |
| Monetization | Free | Free |
| Size | 17 MB | 38 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kane Asia Inc.](https://appshunter.io/developer/1542732944) | [Zhongshan Broad-Ocean Motor Co., Ltd.](https://appshunter.io/developer/1078141230) |

## 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


### Azure ECM

[App page](https://appshunter.io/ios/app/azure-ecm/id6443461253)

This utility app enables precise adjustment of individual Azure motor speed taps to optimize system CFM. It allows for single-tap adjustments on energized taps, with specific limitations on factory-locked taps. Users can reduce torque for lower speeds by selecting alternative taps.

**Highlights:** Adjust individual Azure motor speed taps, Optimize system CFM, Single-tap adjustment on energized taps, Reduce torque for lower speeds, Supports iPhone and iPad

**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 Azure ECM free?

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

### Which has better reviews, UEi DTHA2 or Azure ECM?

Azure ECM is rated higher. UEi DTHA2 averages 4.0 out of 5 from 4 ratings, while Azure ECM averages 4.2 from 5 ratings.

### Do UEi DTHA2 or Azure ECM have ads?

Neither UEi DTHA2 nor Azure ECM shows ads.

### Which is updated more often, UEi DTHA2 or Azure ECM?

UEi DTHA2 ships an update every 7 months, and Azure ECM every 2 months. Most recently, UEi DTHA2 was updated on October 15, 2026 and Azure ECM on October 8, 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.*