# Carrier® SMART Service vs smartHMI

The clearest difference is update cadence: Carrier® SMART Service at every 2 months against smartHMI's every 7 months. smartHMI's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Carrier® SMART Service ships an update every 2 months, smartHMI every 7 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Carrier® SMART Service | smartHMI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (7 ratings)](https://appshunter.io/ios/app/carrier-smart-service/id1270583291/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | — |
| Size | 116 MB | 115 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Carrier Corporation](https://appshunter.io/developer/542004889) | [Siemens AG](https://appshunter.io/developer/394503271) |

## What reviewers say

### Carrier® SMART Service

[App page](https://appshunter.io/ios/app/carrier-smart-service/id1270583291)

This app provides insights into chiller and HVAC unit operations, helping building managers make informed decisions about maintenance, repair, and financial performance. It allows customers to view operating trends and chiller serial numbers for enhanced equipment management.

**Highlights:** Chiller and system operating trend analysis, Informed decision-making for comfort and performance, Integration into preventive and predictive maintenance programs, View chiller serial numbers, Access HVAC unit trends

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

**In-app purchases:** none


### smartHMI

[App page](https://appshunter.io/ios/app/smarthmi/id6448357450)

**In-app purchases:** none


## Frequently asked questions

### Is Carrier® SMART Service free?

Carrier® SMART Service is free to download, with no in-app purchases.

### Is smartHMI free?

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

### Do Carrier® SMART Service or smartHMI have ads?

Neither Carrier® SMART Service nor smartHMI shows ads.

### Which is updated more often, Carrier® SMART Service or smartHMI?

Carrier® SMART Service ships an update every 2 months, and smartHMI every 7 months. Most recently, Carrier® SMART Service was updated on November 4, 2026 and smartHMI on October 30, 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.*