First Alert by Resideo User Reviews

First Alert by Resideo
First Alert by Resideo
Resideo Technologies, Inc.

Customer Experience

Positive experience21.1% of reviews
Neutral10.8% of reviews
Negative experience68.1% of reviews

~ Based on 427 written reviews from the US App Store.

What users say

Is First Alert by Resideo Safe?

First Alert by Resideo appears safe based on user ratings. AppsHunter Safety Score for First Alert by Resideo is 96/100.

This assessment is based on 25,072 user ratings, with an App Store average of 4.8/5.

Safety Analysis

94.9% of ratings point to a safe experience
1.8% of ratings suggest some concerns
3.3% of ratings point to a risky experience

~ Based on 25,072 App Store ratings for First Alert by Resideo.

Is First Alert by Resideo Legit?

First Alert by Resideo appears to be a legitimate app. AppsHunter Legitimacy Score for First Alert by Resideo is 90/100.

Based on 90 of 100 points across 7 verification signals from App Store and developer data.

Top reviews

Doesn't do Nest justice

The app seems like a clean design, but functionality is a bit useless. The only decent thing is getting notified if my wifi is down. The alarm mute feature is broken. I get a notice 1 minute after it goes off (burnt toast) and having shut them off manually. I don't even think the "Mute" alarm feature works on the app.
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Works but bring back humidity reading

Bring back humidity reading. This only stopped showing up at the latest update

Humidity Reading

8/23/36 update: You keep giving the same reply to the humidity reading not being displayed on the app anymore & what you’re suggesting is NOT the issue. We are all not able to see anything displayed for humidity. Not even the word humidity. We were able to before your last update at the beginning of August. Fix this bug via another update! It’s not our t stat settings, it’s your app & we shouldn’t have to call the 1-800 # to get this problem fixed that wasn’t a problem before.


The humidity reading has been completely removed from the main dashboard now. I’m not sure if this is a glitch or a permanent change but please bring it back.
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Love the App

I love the app, while I’m giving this 5 stars and it deserves all of them, they remove the relatively humidity reading and I’m not happy, I’ll hold this five star review as is in hopes they put it back in.

Perpetually OFFLINE

The new name for the app is weird, sounds like “Life Alert”. It should have been atleast relevant to thermostats! Also the wifi connection is EXTREMELY INCONSISTENT, it keeps losing connection and going offline, I literally renamed it “Dumb Thermostat”.

Why remove indoor RH%

I’m an HVAC contractor who recommended these thermostats to customers specifically because I could remotely view indoor humidity. Removing humidity from the app eliminated one of the most useful features for HVAC professionals. I personally own the thermostat, and this change is enough for me to switch to ecobee. More importantly, when customers ask me which smart thermostat I recommend, I’ll now recommend ecobee instead. Removing functionality from existing products isn’t an improvement. Please restore the indoor humidity reading. Went from 5 stars to 1 in just one update.
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Constant disconnection

Thermostat continually disconnects from phone app forcing reinstall. Frustrating

Stop changing the app

Resideo used to be something else. They changed the name and app , fine. Log in once in a long time and now it’s changed to First Alert. Whatever. Get signed into First Alert to get a notification that it will be a new app in a few weeks called Resideo Connect or something. Get a grip and stick with something.
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Easy to use

Excellent and user friendly

Sucks for a single device application

It’s too busy for a single device application. I should be able to customize my dashboard. Get rid of the “Learn More” menu since I don’t need to “ learn more” with a single application. The app should be backwards compatible with the TCC app. Don’t like it.

Sync issues

Completed setup and will not sync

Bad smart home support

Every other smart home app (google home, alexa, etc.) only is able to work with the Honeywell Home app. There is no option to link with the new First Alert app. For new users this means you are stuck with this app until they decide to integrate it with other apps. Please fix this.

Edit: at least the support is good. hopefully this is more straightforward OR better documentation online or in the physical manual per device
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Not great

Way more false alarms than Nest

Absolutely horrible app

Not sure which is worse, the app or the product. Luckily, it’s not about saving lives or preventing fires…oh. Wait.

Very convenient

Very convenient and I would really really like it if it didn’t go off-line.

Constantly signs you out

A nuisance, covers the basics

Absolute Garbage

I don't know who the developers working on this app are, but they absolutely do not know how to test an app before putting out a release. This latest update keeps on freezing after opening up the app, typing inputs are significantly delayed or causing the app to freeze. Switching between locations multiple times causes the app to error out by having the display jitter. Honestly, there needs to be better app testers, especially those that know the products and the use cases associated with it, instead of just making an app for the sake of there being an app. The experience of the app has continously gotten worse overtime with use.
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Home Owner

Excellent connectivity setting up my upstairs and downstairs thermostats

False alarms

Seem to be getting false alarms that cannot be silenced. Pressing the buttons doesn’t work and the app is useless to silence. Has happened twice this morning alone. Detectors installed by a professional licensed electrician and a technician has been here for assistance yet still happening and the app doesn’t work to help so have to listen to blaring noise until it stops on its own. At least with alarms from ten years ago you could take the detector down and pull the battery out.
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False alarms

Brand new unit giving off false alarms