Resideo Connect

Resideo Connect

Formerly The First Alert App

47K ratings
648 reviews
#35 in free Lifestyle
🌟 Lifestyle
Free

Details

Released
October 21, 2026
Updated
October 27, 2026

Features

Background Location Access

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About

Monitor and manage your smart home devices for comfort, safety, and water leak detection. Receive alerts whether you're home or away, and integrate with various smart home partners for comprehensive control.

✓Whole-home device management
✓Real-time alerts (home/away)
✓Comfort control (thermostats)
✓Smart smoke & CO detection
✓Video monitoring (doorbell/cameras)
✓Water leak detection & shutoff
✓Smart home partner integration
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What users say about Resideo Connect

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What's New in Resideo Connect

3.0.5

October 27, 2026

ProSeries 7" All-in-One Panel introduction Humidity display for ElitePRO S900, S1000, S1100 and S1200 thermostats. Bug fixes.

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Charts

Top Free

📉 35-1

Lifestyle

This app dropped -1 position in Lifestyle chart.

Last updated on November 15, 2026.

User reviews

New look

Honey well to Resideo to First Alert. Three different upgrades . This latest one has an easy dashboard access. Easy set up. Look forward to see what comes next.

This app sucks

This app is slow and freezes

Need alerts for equipment issues

The app is ok, but it would be super helpful to have an alert ping you when your system goes into auxiliary mode (or at a minimum, show that it’s operating in auxiliary mode on the app). I’m having heat pump issues and the only way I know each time it happens is if I’m near the wall thermostat or I start feeling cold and go check the physical HVAC. Shouldn’t be that hard to add this information to at least display on the app…??
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Big Improvement

I had a old school thermostat so the thing is a great update. We take vacation vacations in the winter so it's nice to have a monitor at the house that I can check with my phone to see if my house is staying warm and the furnace is. It took about five seconds to learn how to use it. Pretty easy.

Very poor for smoke CO detectors

This app is very poor. If you just have smoke and CO detectors, like the first alert detectors. The first alert app that this replaced was far superior and more straightforward. This app does not label or organize things properly and presents things in a way that are very difficult to make sense of. Though Resido may be trying to make a name for themselves, I’ve personally never heard of it before, and renaming the first alert app to Resideo Connect makes the app very obscure and hard to relate to anything as far as smoke detectors or even home control in anyway.
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Developer apps

User experience

🐞

Reported Bugs

3 issues

Sign-in button not functioning

Bug

Delayed HVAC runtime data updates

Bug

Inability to add new devices

Bug
✨

Requested Features

3 requests

Option to switch between Celsius and Fahrenheit

Feature

Improved remote sensor integration

Feature

Apple Watch and landscape mode support

Feature

FAQ

What does the First Alert by Resideo app do?

The app allows you to monitor and manage a variety of smart home devices, including video cameras, smart smoke and carbon monoxide alarms, smart thermostats, and water leak detectors. It provides whole-home coverage and alerts whether you are at home or away.

What are the key features of this app?

Key features include whole-home coverage for managing various smart devices, real-time alerts for incidents like water leaks or smoke, comfort control for smart thermostats, smart smoke and carbon monoxide detection, video monitoring, and water leak detection with optional shutoff capabilities. It also integrates with smart home partner devices.

Is the First Alert by Resideo app free to use?

The app itself is free to download and use. However, it is designed to work with specific First Alert, Resideo, and Honeywell Home branded smart devices, which are purchased separately. There may also be in-app purchases for additional features or services.

What devices are compatible with the First Alert by Resideo app?

The app is compatible with select Resideo, Honeywell Home, and First Alert branded products, including video cameras, smart smoke and carbon monoxide alarms, smart thermostats, and water leak detection devices. It also integrates with smart home partners like Schlage, Kwikset, and Genie, and can integrate with Google Nest Protect Alarms.

How can this app help prevent home damage?

The app helps prevent home damage through its water leak detection feature, which alerts you to leaks early. It also offers a Water Shutoff Device that can be professionally installed to automatically turn off your home's water supply when a leak is detected, minimizing potential water damage.