
Merry Zerlaut
I've used this 3 years. It worked fine until recently. It wouldn't connect to my wi-fi anymore. (No wifi changes) Showed "change battery" & "reconnect" errors. I changed batteries, & errors remained. I uninstall/ reinstalled the program 3 times!! After the 3rd time, I progressed through the connect to wi-fi pages far enough to see that there is NO SECURITY for my thermostat when using wifi. The app works now, but I'm wondering if it's worth it w/o added security.
21 people found this review helpful

Denise D
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update: I appreciate the developer's quick response. Unfortunately, each time I click "about thermostat" the app crashes. I had a sensi thermostat in my previous home. I've moved and am installing one here. The app keeps telling me it can't connect to the old one, and I can't find any way to tell the app to forget about that one. I did try clearing data and cache. It looks like they want me to create a new account, which requires using a different email address. argh
1 person found this review helpful
Copeland LP
October 14, 2025
Thank you for your review of Sensi Thermostat. Sorry for any confusion on how to delete a thermostat. If you select the thermostat you want to delete, tap the gear icon, and select about thermostat, you will find Remove Thermostat at the bottom of the screen. This does work even if the thermostat is offline. Thanks again for your review!

Island Bob
I just installed the Smart Touch ST75S. I found it very easy to mount, connect the wires, and power on! I thought it was a little strange that it only connects to 2.4GHz. Everything in my home is connected to 5GHz. It's a good thing that my router has both 2.4 and 5GHz. I gave it 4 stars for this reason! The overall setup is straightforward, and you must know what type of system you have. I have a one stage heat pump that required me to go into the "Advanced Set up" make the proper settings!
4 people found this review helpful