Carrier® Côr™ Thermostat User Reviews

Customer Experience

Positive experience11.4% of reviews
Neutral5.0% of reviews
Negative experience83.6% of reviews

~ Based on 219 written reviews from the US App Store.

What users say

Is Carrier® Côr™ Thermostat Safe?

Carrier® Côr™ Thermostat does not appear safe based on available data. AppsHunter Safety Score for Carrier® Côr™ Thermostat is 47/100.

This assessment is based on 44 user ratings, with an App Store average of 1.8/5.

Safety Analysis

20.5% of ratings point to a safe experience
4.5% of ratings suggest some concerns
75.0% of ratings point to a risky experience

~ Based on 44 App Store ratings for Carrier® Côr™ Thermostat.

Is Carrier® Côr™ Thermostat Legit?

Carrier® Côr™ Thermostat appears to be a legitimate app. AppsHunter Legitimacy Score for Carrier® Côr™ Thermostat is 80/100.

Based on 80 of 100 points across 7 verification signals from App Store and developer data.

Top reviews

Disappointing

UPDATE: Still garbage. Still can’t scroll to save changes to comfort profiles. I can’t wait until all these remedial code tappers are replaced with AI.

UPDATE: Still garbage. Still can’t update the comfort profile because the app doesn’t scroll and the button to save is below the bottom margin. I can drag the screen and see it like an oasis in the desert, but I can’t touch it. Can’t wait until AI takes all their jobs.

UPDATE: Still junk. Can’t adjust the schedules because they haven’t figured out not all phones are the size of tablets and I can’t scroll up the page to save/update.

UPDATE: Still utter garbage. You can’t even turn the system on off, change, or even look at the schedule. You have to slide the screen up to reach the controls, but it doesn’t stay, so you can tap them. The last update claimed to enhance the UI, but there’s no appreciable change. It’s inexcusable that they just trashed a wonderful, intuitive, extremely useful app for what feels like the work of the CEO’s nephew who took a class.
________

Because Carrier discontinued the thermostat their otherwise excellent app supported, when Apple made changes they appear to have completely deprioritized providing a useful update for it. Left us all out in the cold, as it were. They kept saying they working hard, but every other app I have, from the remedial to the complex figured it out. I guess they’re regretting making a thermostat with such useful and staying power that they gave to keep supporting it, but that’s their job. They can’t even manage to change the OLD pictures from the app they broke. I am seriously thinking about getting a new smart thermostat and seriously determined that it never again come from Carrier OR Honeywell, who coincidentally acquired it in the summer of 2024.
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Used to be three star, now one

Stopped updating. Needs a basic refresh screen pull down mechanism if it won’t show accurate temperature set numbers on its own. Why not ensure both work.

terrible

Can’t open this iPad with my new iPhone plus getting all kinds of security pop-up saying carrier website is not secure app that does work on my old iPad. Temperature goes all the way down and all the way up whenever it feels like it.

Disappointing

UPDATE: Still garbage. Still can’t update the comfort profile because the app doesn’t scroll and the button to save is below the bottom margin. I can drag the screen and see it like an oasis in the desert, but I can’t touch it. Can’t wait until AI takes all their jobs.

UPDATE: Still junk. Can’t adjust the schedules because they haven’t figured out not all phones are the size of tablets and I can’t scroll up the page to save/update.

UPDATE: Still utter garbage. You can’t even turn the system on off, change, or even look at the schedule. You have to slide the screen up to reach the controls, but it doesn’t stay, so you can tap them. The last update claimed to enhance the UI, but there’s no appreciable change. It’s inexcusable that they just trashed a wonderful, intuitive, extremely useful app for what feels like the work of the CEO’s nephew who took a class.
________

Because Carrier discontinued the thermostat their otherwise excellent app supported, when Apple made changes they appear to have completely deprioritized providing a useful update for it. Left us all out in the cold, as it were. They kept saying they working hard, but every other app I have, from the remedial to the complex figured it out. I guess they’re regretting making a thermostat with such useful and staying power that they gave to keep supporting it, but that’s their job. They can’t even manage to change the OLD pictures from the app they broke. I am seriously thinking about getting a new smart thermostat and seriously determined that it never again come from Carrier OR Honeywell, who coincidentally acquired it in the summer of 2024.
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an unsupported app

Carrier is asleep at the wheel on this app, and does not care. I updated the app. Do not do this … they deleted all the scheduling for air circulation!

AWFUL app

This app used to work fine, and now it’s bugged for the second time. You can’t change the temperature to what you need. It will only go up by 1 degree, and doesn’t let you do half degrees even though it’s an option. So sick of this app that I’m switching to an ecobee unit. Carrier needs some new app developers
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Terrible..

When downloading and opening, it goes into the Log In with email. There was no Registration! I registered on the Carrier website and the app does not recognize my email/pw. Can’t register the devices to operate. Customer service line is terrible as well! Get it together Carrier!

Impossible to use

This app “partially” works…just enough to screw up my heat and AC. scheduled. Cannot Cartier’s idea of a thermostat driven schedule…. So basically I have to manually play with my two thermostats (2 zones) EVERY DAY - and MULTIPLE TIMES to control my house heating and AC. The dealer keeps sending idiots out who don’t know anything about the thermostats they originally installed. Carrier is turning out to be a pile of s—t.
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iOS13

Was working until we updated the iOS and now it crashes. No update in two years is showing very poor support! Updated and worked for another year now the latest update and it will not work again

Bugs not fixed, AGAIN.

Still not able to set the temperature. It always goes .5° low/high then the Set temperature.

Impossible to use

This app “partially” works…just enough to screw up my heat and AC. scheduled. Cannot Cartier’s idea of a thermostat driven schedule…. So basically I have to manually play with my two thermostats (2 zones) EVERY DAY - and MULTIPLE TIMES to control my house heating and AC. The dealer keeps sending idiots out who don’t know anything about the thermostats they originally installed. Carrier is turning out to be a pile of s—t.
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New app doesn’t work

Totally junk can’t even change the temperature.

Can't fix temp

Problem not solved.

Disappointing

UPDATE: Still junk. Can’t adjust the schedules because they haven’t figured out not all phones are the size of tablets and I can’t scroll up the page to save/update.

UPDATE: Still utter garbage. You can’t even turn the system on off, change, or even look at the schedule. You have to slide the screen up to reach the controls, but it doesn’t stay, so you can tap them. The last update claimed to enhance the UI, but there’s no appreciable change. It’s inexcusable that they just trashed a wonderful, intuitive, extremely useful app for what feels like the work of the CEO’s nephew who took a class.
________

Because Carrier discontinued the thermostat their otherwise excellent app supported, when Apple made changes they appear to have completely deprioritized providing a useful update for it. Left us all out in the cold, as it were. They kept saying they working hard, but every other app I have, from the remedial to the complex figured it out. I guess they’re regretting making a thermostat with such useful and staying power that they gave to keep supporting it, but that’s their job. They can’t even manage to change the OLD pictures from the app they broke. I am seriously thinking about getting a new smart thermostat and seriously determined that it never again come from Carrier OR Honeywell, who coincidentally acquired it in the summer of 2024.
Show more

Nope

Still not working. Can’t adjust temp. Please fix it.

Still conversion issues

This app is still not working. Forces temperatures up or down. Pretty sure it comes from poor Farheinheit to Celcius conversion. Please make it work again.

This thing is junk.

It’s perpetually entering a profile successfully and then later it’s mysteriously “holding” the previous profile settings. I’ve spent over a week trying to clear these holds so that it will run as scheduled to no avail. I think the solution is to buy a different thermostat and use a different app.

Works Perfect

Love the app because I can change the temperature even when I’m not home

What happened to my old app?

Now the thermostat on my wall has the screens I know and use and this app has nothing. When I increase the temp on this app it doesn’t show on the thermostat on the wall…what the heck….Worthless! Not approved update for me, want my old app back!

New Update is Terrible

New Update for iPhone Now Can’t Scroll up High Enough to Select “Update” when I am trying to adjust temp profiles - very frustrating!