# HVAC/R AI Pro vs TechAssist Pro

The clearest difference is rating: TechAssist Pro at 5.0 against HVAC/R AI Pro's 4.6. TechAssist Pro also leads on update cadence (every 11 days vs every 5 weeks) and device support (4 vs 2). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. HVAC/R AI Pro sells 2 in-app purchases, starting at $9.99 per month and TechAssist Pro sells 2 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

TechAssist Pro holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

HVAC/R AI Pro ships an update every 5 weeks, TechAssist Pro every 11 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | HVAC/R AI Pro | TechAssist Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (5 ratings)](https://appshunter.io/ios/app/hvacr-ai-pro/id6747730624/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/techassist-pro/id6772018508/reviews)** |
| Number of ratings | **5** | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 11 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 94 MB | 58 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Cowboy G Industries LLC](https://appshunter.io/developer/1822667807) | [Justin Lott](https://appshunter.io/developer/6772018265) |

## What reviewers say

### HVAC/R AI Pro

[App page](https://appshunter.io/ios/app/hvacr-ai-pro/id6747730624)

This app provides HVAC and refrigeration technicians with AI-powered diagnostic assistance, duct sizing calculations, and job estimation tools. It offers step-by-step troubleshooting, airflow analysis, and photo-based equipment support to streamline service calls.

**Highlights:** AI Diagnostic Assistant, Step-by-step troubleshooting, Duct sizing calculations, Airflow analysis, Job estimate tool, Photo-based equipment support, Chat history

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Plan | $9.99 | per month |
| Pro | $19.99 | per month |


### TechAssist Pro

[App page](https://appshunter.io/ios/app/techassist-pro/id6772018508)

This AI-powered tool provides instant diagnostic assistance for technicians. Describe or scan equipment to receive step-by-step troubleshooting, including required tools, readings, repair procedures, and safety warnings. It supports over 50 trade categories and offers a hands-free Apple Watch companion app.

**Highlights:** AI diagnostic assistant, Step-by-step repair procedures, Safety warnings and code compliance, Voice & hands-free mode, Offline mode, Apple Watch companion app

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TechAssist Pro | $19.99 | per month |
| TechAssist Pro (Annual) | $199.99 | per year |


## Frequently asked questions

### Is HVAC/R AI Pro free?

HVAC/R AI Pro is free to download, with in-app purchases available.

### Is TechAssist Pro free?

TechAssist Pro is free to download, with in-app purchases available.

### Which has better reviews, HVAC/R AI Pro or TechAssist Pro?

TechAssist Pro is rated higher. HVAC/R AI Pro averages 4.6 out of 5 from 5 ratings, while TechAssist Pro averages 5.0 from 2 ratings.

### Do HVAC/R AI Pro or TechAssist Pro have ads?

Neither HVAC/R AI Pro nor TechAssist Pro shows ads.

### Which is updated more often, HVAC/R AI Pro or TechAssist Pro?

HVAC/R AI Pro ships an update every 5 weeks, and TechAssist Pro every 11 days. Most recently, HVAC/R AI Pro was updated on October 25, 2026 and TechAssist Pro on October 24, 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.*