
Lowe's
FreeDuo-native
Shop Lowe's and find the aisle in store
On the Duo: Duo-native. Version 1.1.2 (26 October) brought iPhone Duo screenshots to the App Store, its release notes say; its maker's site shows the thermostat controls on the open Duo in landscape. Checked November 5, 2026.
App Store data as of October 27, 2026

If you want to control lights, locks or anything other than a thermostat, this does not cover it.
The app controls any thermostat added to Apple's Home app, showing only the modes it supports among Heat, Cool, Auto and Off. In Auto it shows the comfort range and moves it with a tap, and it switches between thermostats and homes. There is no account, no ads and no tracking, and it works in Fahrenheit or Celsius.
Its maker shows it on the open Duo in landscape, set to Heat at 72° with the room at 68°.