Free

Details

  • Released
  • Updated
  • January 20, 2025
  • July 21, 2026

Features

Ion SmartHome screenshot #1 for iPhone
Ion SmartHome screenshot #2 for iPhone
Ion SmartHome screenshot #3 for iPhone
Ion SmartHome screenshot #4 for iPhone
Ion SmartHome screenshot #5 for iPhone
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About

Manage and personalize your home's comfort system remotely. Set custom schedules, monitor energy usage, and receive real-time alerts for optimal home environment control.

Remote Control
Smart Schedules
Energy Insights
Real-Time Alerts
Personalized Comfort
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What users say

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+1

What's New in Ion SmartHome

1.2.37

July 21, 2026

• Weather Forecast no longer shows a blank screen for invalid zip codes. You'll see a clear error message, and the forecast banner hides automatically when no valid address is set. • Resolved multiple accessibility issues including text overlap with the temperature spinner, UI issues on the Intercom screen, document loading in SmartSave, upload button visibility, and FAQ content not loading in Help & Support.

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User reviews

Frustrated

Worked fine for almost 3 years. About a month or so ago it stopped connected to the company server. Connects to my WiFi just fine. Using 2.4ghz router. Won’t connect to company’s Data or OTA server. Completely useless. Local HVAC installer says they have no idea why.

Response from developer

We appreciate you leaving a review. For the fastest help, head to Profile → Help & Support → Contact Us in the SmartHome app. If it can’t be resolved there, our support team can take a closer look and guide next steps.

Barebones

Maybe it’s only the thermostat model I have, but I was expecting this to be much more than just a “set temperature” app. Where are the usage graphs? Fan speed/stage information over time? Temperature graphs over time, etc etc. These seem like basic features for a smart thermostat + app. Am I missing something?
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Response from developer

Sorry you're running into this. The SmartHome app offers core thermostat control. For advanced features like usage graphs and historical temperature data, capabilities vary by specific system models. We invite you to join our early access program to experience upcoming features. To get the fastest feedback on your unique system, please use in-app support by navigating to Profile -> Help & Support -> Contact Us.

Annoying

It’s super annoying when I change the temp on my app and then it doesn’t stick and I have to go back in 2 or 3 times to make it stick

Response from developer

Sorry you're running into this. We understand that temperature changes not sticking can be frustrating. To help us investigate further, please reach out to our support team via the app at Profile → Help & Support → Contact Us. This guide may also be helpful: link.carrier.io/60s9ld

HomeKit was promised, but not delivered

HomeKit was promised with a previous version to be on the roadmap and it’s never been delivered, what’s the status of HomeKit compatibility? I want to be able to ask Siri to set the temperature to what I want as well as the fan speed and humidifier.

Junk

Worked fairly well until updating. now don’t buy.

Developer apps

User experience

🐞

Reported Bugs

2 issues

Unable to turn unit on/off

Bug

Humidity settings not updating properly

Bug

Requested Features

3 requests

Add HomeKit integration

Feature

Improve remote access and control capabilities

Feature

Provide better visibility into system status and performance

Feature

FAQ

What does the Ion SmartHome app do?

The Ion SmartHome app allows you to manage and personalize your home's comfort experience. You can control compatible Ion systems remotely, set customized schedules, monitor energy usage, and receive real-time alerts.

What are the key features of Ion SmartHome?

Key features include remote control of temperature and humidity, the ability to create smart schedules for energy savings, energy insights to track usage trends, and real-time alerts for system attention.

Is the Ion SmartHome app free to use?

Based on the provided information, the app is free to download and use. There are no mentions of in-app purchases or subscription fees.

What devices is Ion SmartHome compatible with?

The app is compatible with iPhone devices running iOS 15.1 or later. It is designed to control compatible Ion home comfort systems.

How can Ion SmartHome help me save energy?

The app helps save energy through its Smart Schedules feature, allowing you to create custom routines that optimize system operation based on your needs. Additionally, Energy Insights provides data on usage trends, enabling you to make informed decisions for better efficiency.