• Wifi Radio Thermostat Client + Hub/Server 1
  • Wifi Radio Thermostat Client + Hub/Server 2
  • Wifi Radio Thermostat Client + Hub/Server 3
  • Wifi Radio Thermostat Client + Hub/Server 4

Wifi Radio Thermostat Client + Hub/Server

If you have a radio (wifi) enabled thermostat CT-30 (aka 3M50) or CT-80, available from home depot or online) you can control it while in your home using this app which extends your phone to be part of your home monitoring or home automation system. Use your phone as a portable thermostat control!

In contrast to the manufacturer's cloud management, this app is local with instant access and response. Being local there's no security risk to your network (externally connected devices can serve as bridges to break into your home network) so you can disable the thermostat from accessing the internet. The app allows you to access your thermostat (locally) even when that cloud service or your internet connection is down. No more shivering/sweating, waiting and wondering - you can make and see the change instantly. Keep an android phone or tablet by your bed as an alarm clock and handy thermostat.

Use the thermostat widget so you can see what's going on at a glance.

If you need to change temperature settings while away from home you can continue to use the Radio Thermostat cloud service or for secure access run your own cloud service using AutomationManager.

For advanced automation you'll want to use AutomationManager (see the developers site for details). Using it you can define enhanced schedules, control temperature using location detection, and other similar automation including voice control with Google Home or Amazon Alexa. To use AutomationManager you'll want to both it and this app in server/hub mode together on a dedicated android device.

This really is a free app, not ad supported! If you would like to support the development of this application and others like it, consider purchasing and using AutomationManager.

Note - this app only supports functions provided by the CT-30 API. Functions such as holiday mode, filter, etc, are cannot be provided. Consider using AutomationManager to provide similar advanced functions and more.

NOTE: The CT-30 API is a built in web server that tends to be a little unstable and occasionally drops requests from the app. When this happens (or when your phone is not able to connect to the thermostat) the widget and the app will show ?'s instead of the temperature. It will attempt to reconnect every few minutes (less often if not on wifi).

This app uses the internal URL (IP) and the manufacturer's unprotected local API to control the thermostat. It is for use within your home only. Do not expose your thermostat URL outside of your home network! The thermostat does not provide security to protect it's URL or data, and this app cannot add security on it's own.

Category : House & Home

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Reviews (9)

Wil. K. Nov 2, 2020     

For use with a ct50, which I used to have, rating would be closer to 5/5. It was great! However, for the ct80, it doesn't seem to take advantage of the added functionality (reading/setting humidity levels, for example, which is why I eventually moved to the ct80) - 3.5/5. Would love to up my rating to a 5/5!

Ser. S. Jul 8, 2021     

Works always! Unlike the cloud based app that takes a long while to update status and send commands if it does at all. Very frustrating. I am very happy with this app. Thank you!

Joh. D. Nov 2, 2021     

Good app. But can't figure out how to delete thermostats. If I have trouble connecting to a thermostat it creates another unknown thermostat every time. Touching the x next to the name doesn't do anything.

Ste. M. Apr 17, 2020     

Excellent alternative to the manufacturers app. I like the interface. Nice to make changes to the schedule with an Android device (not available on the manufacturers app)

Ed. C. Feb 25, 2019     

This app lets me do exactly what I bought the Radio Thermostat for: easy control _without_ having to use a cloud service!

M. M. Aug 20, 2021     

Company abandoned support! Buy something else, not this.

Guy. May 10, 2018     

Found this because oem app kept crashing.. This works much better

A. G. u. Sep 9, 2018     

Great app if you want to isolate the thermostat from the internet. I wish i could chose the old widget, though, any way to add it back? Thx

Mar. M. Mar 21, 2018     

I've been wanting to find or write a better app to control my wifi thermostats for a long time as the one provided by Radio Thermostat is maddenly slow and often requires two commands to make a change. I can't imagine a better app than this one. It automatically found and set up my 4 thermostats and responds instantly! Thank you for developing this app and making it available for free. I would have gladly paid for it.