3.8
1.59K reviews
50K+
Downloads
Content rating
Everyone
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About this app

The Lennox Smart Thermostat App allows you to remotely access and control your Lennox Smart Thermostat and advanced accessories from anywhere in the world. Whether it’s adjusting your home’s temperature or schedule, monitoring your indoor air quality (Lennox Air Quality Monitor required) or balancing room temperatures, the control is all at your fingertips.

You must own a Lennox Smart Thermostat (S40/L40, S30/E30/M30) to use this app. The Lennox Smart Thermostat must also be connected to your home’s Wi-Fi router before the app can control the settings. For more information go to https://www.lennoxsmartertogether.com/help/index.html

We truly appreciate your questions and comments. Please keep sending your suggestions to consumeraffairssocial@lennoxind.com or @AskDaveLennox on Twitter
Updated on
Apr 10, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info and App info and performance
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.8
1.55K reviews
Steve Fung
November 17, 2024
every once in a while, when I open the app it will show my home's temperature, but won't let me change the mode or settings until I force close the app and reopen it. also, I wish that the app allowed lower temperature settings. the lowest it let's you set is 60 degrees. when I'm away for more than a day in the winter, I don't need my house heated that high, I just need it a little above 30 to keep the temperature above freezing.
5 people found this review helpful
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William Bragg
April 16, 2025
Nice app .... When it works. This upgrade has the potential to be better than the original, but it crashes or hangs on "retrieving information," so much I had to stop using it. On the rare occasion that it opens and connects, I really like it, but that's 1 out of every 10 times. Seems like it was rushed out to the Play Store and desperately needs an update or a beta for user feedback. Until then, it's too frustrating to use daily.
3 people found this review helpful
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Petr Vandrovec
April 18, 2025
Controlling settings in a new app is terribly complicated, especially with multiple zones. There is a screen showing current settings, but it is just for viewing, not for control. Control is in a separate menu which has all systems - but no zones. Definitely a huge step back for functionality needed daily. It is nice that some advanced settings can be now controlled remotely - but I never had to change those. Only thing I ever had to change is CFM settings, and those are not available...
3 people found this review helpful
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What’s new

• Improved in-app instructions to locate the PIN generation feature on S30, E30, and M30 thermostats
• Increased password character limit to 50 characters for better login compatibility