The My Ion™ control can direct an entire advanced home comfort system to let you precisely manage comfort, humidity, ventilation and air purification from one source. It even makes scheduling a breeze.

Manage your Ion™ control system remotely with My Ion™

What’s New

Version 2.44.0

- Updates
- Bug fixes

Ratings and Reviews

1.9 out of 5
62 Ratings

62 Ratings

rkc3141 ,

The ION app is soooo unreliable 😣!!

I’ve had the ION Thermostat for about 6 months now and while it seems to function reasonably well (and I really do like the functionality) most of the time it quite often loses connection to the server so I have to de-install (remove) the ION app from my iPhone and them go into the APP STORE and re-install (add) the ION app again. While this normally works and continues to operate (usually for several days) I’m always having to periodically go back in and go through the same process again to get the app functioning properly back on my phone). It’s easy to do but very annoying!! :-(
Also, on the ION app they need to name it ‘ION t-stat’ instead of just showing it as ION since there are other ION apps shown.
I will gladly REPOST as 4 or 5 stars when this is ever updated by the developers.


Not as Good as Nest

I had to update my furnace and got a Tempstar ION 18 TVH8 system. I was forced to stop using my Google Nest thermostat and use the ION Thermostat and software.
Well the thermostat can’t determine if you are at home or not so your in or away from home has to be scheduled daily. So you save less energy because if you leave outside of the scheduled time it doesn’t automatically go into away mode. This is a phone feature and they could update the software to do this.
It doesn’t sense your presence near it and automatically turn on and off the display. This would require a hardware update obviously but it shows so much lack of planning by the designers.
There is some weird delay or even loss of communication between the app and the actual thermostat. I can make changes in the app that never seem to get to the thermostat or take minutes to update the thermostat. My Google Nest App was immediate update to the thermostat. I used to get frequent app updates of the Google Nest software and this version of the ION software is over 1 year old. I’m so disappointed in this software I have to use VS the Google Nest software.

Razor21674526 ,


The app for this thermostat is terribly dated; when it’s is actually connected and working you have to leave the app open for a period of time between 30 seconds and 2 minutes. Only then will it will refresh and change the temperature. If you change the temp and move on to something else it won’t work. It also has issues with connecting to the server which I’m assuming by other reviews must be on carriers end as I’m not the only one having the issue. It’s frustrating and annoying. Someone needs to address this and if you are in the market for a new hvac system make sure this platform isn’t being utilized! Has potential but as of now I’m not impressed. Ps for the love of god change the landscape orientation lock on the app and add a submit button or something to issue the command to the thermostat. Two thumbs down at this point.

App Privacy

The developer, International Comfort Products Corporation, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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