# Visual3D App vs HVAC Mastery

The clearest difference is in-app purchases: HVAC Mastery at none against Visual3D App's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Visual3D App sells 1 in-app purchase, starting at $12.95 per month. HVAC Mastery asks for nothing beyond the download.

## The numbers

| Metric | Visual3D App | HVAC Mastery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hvac-mastery/id6773027290/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | — | Free |
| Size | 168 MB | 21 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Nauman Innovation Group LLC](https://appshunter.io/developer/1764933586) | [arjan qema](https://appshunter.io/developer/1895283314) |

## What reviewers say

### Visual3D App

[App page](https://appshunter.io/ios/app/visual3d-app/id6670464988)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Single User Package | $12.95 | per month |


### HVAC Mastery

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

This app provides hands-on learning for HVAC professionals, covering fundamentals, core and advanced systems, and EPA 608 certification prep. It features interactive diagrams, simulators, real-world challenges, and quick reference tools for on-the-job use.

**Highlights:** Structured learning tracks, Interactive electrical and wiring simulators, Refrigerant cycle simulator with fault injection, Built-in HVAC calculators, Hands-on wiring and troubleshooting challenges, Field reference tools and refrigerant guide, Flashcards and progress tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is Visual3D App free?

Visual3D App is free to download, with in-app purchases available.

### Is HVAC Mastery free?

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

### Do Visual3D App or HVAC Mastery have ads?

Neither Visual3D App nor HVAC Mastery shows ads.

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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.*