# Resideo Technician vs Duct Sensor Assistant

The clearest difference is update cadence: Resideo Technician at monthly against Duct Sensor Assistant's every 6 months. Duct Sensor Assistant's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Resideo Technician ships an update monthly, Duct Sensor Assistant every 6 months. The most recent releases landed on November 5, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Resideo Technician | Duct Sensor Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (308 ratings)](https://appshunter.io/ios/app/resideo-technician/id1470259201/reviews)** | — |
| Number of ratings | **308** | — |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | Free | — |
| Size | 166 MB | 31 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Resideo Technologies, Inc.](https://appshunter.io/developer/1437524946) | [BELIMO Automation AG](https://appshunter.io/developer/1149281298) |

## What reviewers say

### Resideo Technician

[App page](https://appshunter.io/ios/app/resideo-technician/id1470259201)

This app streamlines the installation and configuration of HVAC and security products from specific brands. It allows professionals to securely connect to devices, verify functionality, and manage customer registrations. Additionally, it provides access to technical resources and company installation data.

**Highlights:** Simplify installation and configuration, Securely connect via Bluetooth, Wi-Fi, or QR code, Verify device functionality, Invite customers for registration, Access tech tips and training guides, Browse replacement parts catalog, Track device installations

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

**In-app purchases:** none


### Duct Sensor Assistant

[App page](https://appshunter.io/ios/app/duct-sensor-assistant/id1559862597)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Resideo Technician free?

Resideo Technician is free to download, with no in-app purchases.

### Is Duct Sensor Assistant free?

Duct Sensor Assistant is free to download, with no in-app purchases.

### Do Resideo Technician or Duct Sensor Assistant have ads?

Neither Resideo Technician nor Duct Sensor Assistant shows ads.

### Which is updated more often, Resideo Technician or Duct Sensor Assistant?

Resideo Technician ships an update monthly, and Duct Sensor Assistant every 6 months. Most recently, Resideo Technician was updated on November 5, 2026 and Duct Sensor Assistant on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*