Local client and advanced server for Wifi Thermostats CT30, CT80, 3M50
About Wifi RadioThermostat
Wifi RadioThermostat is a house & home app developed by MikeP.
Download Statistics
Wifi RadioThermostat has been downloaded 6.2 thousand times. In the last 30 days, the app was downloaded 12 times.
User Ratings
Wifi RadioThermostat is rated 4.46 out of 5 stars. The rating is based on 46 ratings.
App Information
Wifi RadioThermostat is FREE to download. The APK download size is 8.00 MB. The latest version available is 3.1.3. The last update was on August 13, 2026.
Technical Requirements
Wifi RadioThermostat requires Android 4.1+ or higher. The app has a content rating of Everyone. The app has been available on Google Play November 2017.
Description
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.
Recent changes: Enable 1/2 degree in editor edge to edge workaround
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Works better than the official app did (it's gone?), but only locally. If you have an exposed ssh server you can use an ssh port forward for remote access with connect bot. Just set up an ssh local port to the ssh host with the IP of thermostat and port 80 for the destination. I used local port 8888. In the app, set thermostat IP to localhost:8888. Of course, support the developer!
★★★★☆Ken Deken· Mar 1, 2023
It's fine for what it does -- inside my house. However, that's not what I need. I want to be able to control my thermostat through the Internet as I could do with the Radio Thermostat cloud application. However, the way RT has their system set, the cloud polls the thermostat, so I'd need to dedicate a server to solve that problem. Appreciate the work of the developer, but just replacing the thermostats will be easier for me.
★★★★★Bob James· Jul 12, 2023
The interface isn't flashy, but it works great to control my Radio Thermostat after that company shut down.
★★☆☆☆William Brookfield· Jan 7, 2023
The last version worked great, but this new version has a problem with the widget on my Pixel pro 7. It does not show the temperature and crashes when I click on it. Hope they fix it soon
★☆☆☆☆S S· Dec 21, 2022
Company is discontinuing their mobile app. DON'T BUY THIS PRODUCT OR YOU'LL END UP WITH A BRICK
★☆☆☆☆M Motilewa· Aug 20, 2021
Company abandoned support! Buy something else, not this.
★★☆☆☆Dave M.· May 24, 2024
Great app except it doesn't work with port forwarding to allow remote access. I realize this is by design for security reasons, but I think the developer should warn users of this issue and let them decide. I won't be using the app.
Google Play Rankings for Wifi RadioThermostat
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Technologies used by Wifi RadioThermostat
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