# Ion Blue vs Carrier SmartHome

The clearest difference is rating: Carrier SmartHome at 3.5 against Ion Blue's 2.0. Carrier SmartHome also leads on ratings volume (2.6K vs 8) and update cadence (fortnightly vs every 2 months). Ion Blue's advantage is review sentiment (25% vs 11%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Carrier SmartHome holds the better App Store score, 3.5 against 2.0. That said, the two scores are not equally well evidenced: Carrier SmartHome has 2.6K ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 25% of Ion Blue's written reviews are positive against 11% of Carrier SmartHome's, so the app with the better star average is not the one people write more warmly about.

Ion Blue ships an update every 2 months, Carrier SmartHome fortnightly. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Ion Blue | Carrier SmartHome |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (8 ratings)](https://appshunter.io/ios/app/ion-blue/id6469643514/reviews) | **[3.5 (2.6K ratings)](https://appshunter.io/ios/app/carrier-smarthome/id6503700523/reviews)** |
| Number of ratings | 8 | **2.6K** |
| Positive reviews | **25.0% of reviews** | 10.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 56 MB | 193 MB |
| Requires iOS | 15.5 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Metropolitan Industries, Inc.](https://appshunter.io/developer/1476515241) | [Carrier Corporation](https://appshunter.io/developer/542004889) |

## What reviewers say

### Ion Blue

[App page](https://appshunter.io/ios/app/ion-blue/id6469643514)

Monitor and manage your smart home plumbing system remotely. Receive custom alerts for potential issues like flooding or water damage, and grant access to trusted contacts for timely response. Ideal for homeowners and property managers seeking peace of mind.

**Highlights:** Remote plumbing system monitoring, Flood and water damage alerts, Customizable push notifications, Multi-user access with permissions, Support for multiple residences, Cloud-enabled solutions

**In-app purchases:** none


### Carrier SmartHome

[App page](https://appshunter.io/ios/app/carrier-smarthome/id6503700523)

Manage your home's comfort remotely with this app. Adjust temperature, create custom schedules, monitor energy usage, and receive real-time alerts for your compatible Carrier system. Redefine your home comfort experience with intuitive control.

**Highlights:** Remote temperature and humidity adjustment, Customizable smart scheduling, Energy usage monitoring, Real-time system alerts, Intuitive user interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Significant improvement
- 👍 Intuitive and easy to use
- 👍 Sleek, modern feel
- 👍 Refreshed look and improved experience
- 👍 Good screens

**What reviewers complain about**

- 🐛 App freezes and requires force quit
- 🐛 Doesn't show correct operating status
- 🐛 Doesn't update outside temperature
- 🐛 Fails to register temperature changes
- 🐛 Unreliable connection and sync issues

**Reported bugs**

- App freezes and becomes unresponsive
- Operating status not in sync with wall controller
- Notifications don't work or are delayed
- AQI data is inaccurate for user's location
- Temperature changes not reflected in app

**Requested features**

- Show system operating status (heating, cooling)
- Display energy consumption details
- Add more temperature schedule options
- Integrate with Apple HomeKit
- Show outside temperature measured by the system


## Frequently asked questions

### Is Ion Blue free?

Ion Blue is free to download, with no in-app purchases.

### Is Carrier SmartHome free?

Carrier SmartHome is free to download, with no in-app purchases.

### Which has better reviews, Ion Blue or Carrier SmartHome?

Carrier SmartHome is rated higher. Ion Blue averages 2.0 out of 5 from 8 ratings, while Carrier SmartHome averages 3.5 from 2.6K ratings.

### Do Ion Blue or Carrier SmartHome have ads?

Neither Ion Blue nor Carrier SmartHome shows ads.

### Which is updated more often, Ion Blue or Carrier SmartHome?

Ion Blue ships an update every 2 months, and Carrier SmartHome fortnightly. Most recently, Ion Blue was updated on November 3, 2026 and Carrier SmartHome on November 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*