# Installer App vs Carrier® Service Technician

The clearest difference is rating: Carrier® Service Technician at 4.1 against Installer App's 3.0. Carrier® Service Technician also leads on ratings volume (108 vs 7) and update cadence (fortnightly vs every 5 weeks). Installer App's advantage is review sentiment (53% vs 31%). 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® Service Technician holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: Carrier® Service Technician has 108 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 53% of Installer App's written reviews are positive against 31% of Carrier® Service Technician's, so the app with the better star average is not the one people write more warmly about.

Installer App ships an update every 5 weeks, Carrier® Service Technician fortnightly. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Installer App | Carrier® Service Technician |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (7 ratings)](https://appshunter.io/ios/app/installer-app/id423984641/reviews) | **[4.1 (108 ratings)](https://appshunter.io/ios/app/carrier-service-technician/id1123086541/reviews)** |
| Number of ratings | 7 | **108** |
| Positive reviews | **53.3% of reviews** | 31.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 90 MB | 176 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Danfoss A/S](https://appshunter.io/developer/423984644) | [Carrier Corporation](https://appshunter.io/developer/542004889) |

## What reviewers say

### Installer App

[App page](https://appshunter.io/ios/app/installer-app/id423984641)

This app provides HVAC professionals with a digital toolbox for everyday tasks. It offers product information, installation guides, and advanced features to streamline work, including project management and hydronic balancing tools.

**Highlights:** Radiator Presetting, Product Finder, My Projects (Cloud-based), Hydronic Balancing, Flow/Pressure Calculator, Floor Heating Tools, Burner Converter, Magnetic Tool

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

**In-app purchases:** none


### Carrier® Service Technician

[App page](https://appshunter.io/ios/app/carrier-service-technician/id1123086541)

This app helps HVAC/R technicians quickly identify and locate necessary parts for repairs on any equipment, whether for warranty or non-warranty services. It offers advanced tools for troubleshooting, system calculations, and accessing technical documentation, all from the job site.

**Highlights:** AI Assistant for troubleshooting, System Capacity Calculator, Intelligent Equipment Search, Parts Identification & Cross-Reference, Warranty & Service History Lookup, Nearest Parts Center Locator, Technical Literature Access

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

**In-app purchases:** none


## Frequently asked questions

### Is Installer App free?

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

### Is Carrier® Service Technician free?

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

### Which has better reviews, Installer App or Carrier® Service Technician?

Carrier® Service Technician is rated higher. Installer App averages 3.0 out of 5 from 7 ratings, while Carrier® Service Technician averages 4.1 from 108 ratings.

### Do Installer App or Carrier® Service Technician have ads?

Neither Installer App nor Carrier® Service Technician shows ads.

### Which is updated more often, Installer App or Carrier® Service Technician?

Installer App ships an update every 5 weeks, and Carrier® Service Technician fortnightly. Most recently, Installer App was updated on November 1, 2026 and Carrier® Service Technician on November 2, 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.*