# Installer App vs HVAC Master AI

The clearest difference is review sentiment: HVAC Master AI at 100% against Installer App's 53%. HVAC Master AI also leads on rating (5.0 vs 3.0) and update cadence (every 11 days vs every 5 weeks). Installer App's advantage is in-app purchases (none vs 1). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. HVAC Master AI sells 1 in-app purchase, starting at $4.99 per month. Installer App asks for nothing beyond the download.

HVAC Master AI holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 7 and 3 respectively. Written reviews point the same way: 53% of Installer App's written reviews are positive against 100% of HVAC Master AI's.

Installer App ships an update every 5 weeks, HVAC Master AI every 11 days. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Installer App | HVAC Master AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (7 ratings)](https://appshunter.io/ios/app/installer-app/id423984641/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/hvac-master-ai/id6738960643/reviews)** |
| Number of ratings | **7** | 3 |
| Positive reviews | 53.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 90 MB | 159 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Danfoss A/S](https://appshunter.io/developer/423984644) | [alexis atilano](https://appshunter.io/developer/1783149667) |

## 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


### HVAC Master AI

[App page](https://appshunter.io/ios/app/hvac-master-ai/id6738960643)

This mobile assistant helps HVAC technicians diagnose, repair, and optimize heating, ventilation, and air conditioning systems. It provides expert advice, refrigerant information, EPA 608 guidance, and heat pump insights for quick access to solutions.

**Highlights:** Comprehensive HVAC troubleshooting advice, Refrigerant expertise, EPA 608 compliance guidance, Heat pump system insights, Quick access to solutions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly  Subscription | $4.99 | per month |


## Frequently asked questions

### Is Installer App free?

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

### Is HVAC Master AI free?

HVAC Master AI is free to download, with in-app purchases available.

### Which has better reviews, Installer App or HVAC Master AI?

HVAC Master AI is rated higher. Installer App averages 3.0 out of 5 from 7 ratings, while HVAC Master AI averages 5.0 from 3 ratings.

### Do Installer App or HVAC Master AI have ads?

Neither Installer App nor HVAC Master AI shows ads.

### Which is updated more often, Installer App or HVAC Master AI?

Installer App ships an update every 5 weeks, and HVAC Master AI every 11 days. Most recently, Installer App was updated on October 17, 2026 and HVAC Master AI on October 16, 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.*