# GREE Contractor Pro vs HVAC Mastery

The clearest difference is update cadence: HVAC Mastery at daily against GREE Contractor Pro's every 2 weeks. HVAC Mastery also leads on ratings volume (3 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for GREE Contractor Pro against 5.0 for HVAC Mastery. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

GREE Contractor Pro ships an update every 2 weeks, HVAC Mastery daily. The most recent releases landed on October 19, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | GREE Contractor Pro | HVAC Mastery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/gree-contractor-pro/id6759624236/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/hvac-mastery/id6773027290/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free | Free |
| Size | 25 MB | 24 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Watsco, Inc.](https://appshunter.io/developer/510378878) | [arjan qema](https://appshunter.io/developer/1895283314) |

## What reviewers say

### GREE Contractor Pro

[App page](https://appshunter.io/ios/app/gree-contractor-pro/id6759624236)

This app provides HVAC professionals with essential resources for GREE Heat Pump systems. Access installation guides, servicing information, troubleshooting tips, and live training sessions directly from your mobile device.

**Highlights:** Installation resources, Servicing information, Troubleshooting guides, Live trainings and broadcasts, Technical content notifications, Field access to resources

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

**In-app purchases:** none


### HVAC Mastery

[App page](https://appshunter.io/ios/app/hvac-mastery/id6773027290)

This app offers a comprehensive learning experience for HVAC professionals and apprentices. It features interactive diagrams, hands-on challenges, and field reference tools to master the trade and prepare for certification exams.

**Highlights:** Structured learning tracks, Interactive electrical and refrigerant simulators, Hands-on wiring and troubleshooting challenges, Field reference tools and calculators, Flashcards and progress tracking, Cloud sync across devices

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

**In-app purchases:** none


## Frequently asked questions

### Is GREE Contractor Pro free?

GREE Contractor Pro is free to download, with no in-app purchases.

### Is HVAC Mastery free?

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

### Which has better reviews, GREE Contractor Pro or HVAC Mastery?

GREE Contractor Pro and HVAC Mastery are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do GREE Contractor Pro or HVAC Mastery have ads?

Neither GREE Contractor Pro nor HVAC Mastery shows ads.

### Which is updated more often, GREE Contractor Pro or HVAC Mastery?

GREE Contractor Pro ships an update every 2 weeks, and HVAC Mastery daily. Most recently, GREE Contractor Pro was updated on October 19, 2026 and HVAC Mastery on October 31, 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.*