# Visual3D App vs HVAC Expert Advisor

The clearest difference is update cadence: HVAC Expert Advisor at daily against Visual3D App's every 2 months. Visual3D App's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Visual3D App sells 1 in-app purchase, starting at $12.95 per month and HVAC Expert Advisor sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Visual3D App ships an update every 2 months, HVAC Expert Advisor daily. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Visual3D App | HVAC Expert Advisor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Size | 168 MB | 30 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Nauman Innovation Group LLC](https://appshunter.io/developer/1764933586) | [ROCATECH LLC](https://appshunter.io/developer/1819696394) |

## 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 Expert Advisor

[App page](https://appshunter.io/ios/app/hvac-expert-advisor/id6747071375)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Monthly Plan | $12.99 | per month |
| Basic Annual Plan | $119.99 | per year |


## Frequently asked questions

### Is Visual3D App free?

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

### Is HVAC Expert Advisor free?

HVAC Expert Advisor is free to download, with in-app purchases available.

### Do Visual3D App or HVAC Expert Advisor have ads?

Neither Visual3D App nor HVAC Expert Advisor shows ads.

### Which is updated more often, Visual3D App or HVAC Expert Advisor?

Visual3D App ships an update every 2 months, and HVAC Expert Advisor daily. Most recently, Visual3D App was updated on October 16, 2026 and HVAC Expert Advisor on October 9, 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.*