# Ductulator vs TEC Excelsior HVAC Pro+

The clearest difference is rating: TEC Excelsior HVAC Pro+ at 4.4 against Ductulator's 1.0. TEC Excelsior HVAC Pro+ also leads on ratings volume (12 vs 2). Ductulator's advantage is update cadence (weekly vs every 2 months) and monetization model (free vs ad-supported). On price, ads, in-app purchases and device support there is nothing between them.

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

TEC Excelsior HVAC Pro+ holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: TEC Excelsior HVAC Pro+ has 12 ratings behind it against 2, so its average is the more settled of the two.

Ductulator ships an update weekly, TEC Excelsior HVAC Pro+ every 2 months. Both last shipped on October 12, 2026.

## The numbers

| Metric | Ductulator | TEC Excelsior HVAC Pro+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/ductulator/id1528030964/reviews) | **[4.4 (12 ratings)](https://appshunter.io/ios/app/tec-excelsior-hvac-pro-plus/id1610400044/reviews)** |
| Number of ratings | 2 | **12** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | **Free** | Ad-supported |
| Size | 14 MB | 163 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Simon Leroux](https://appshunter.io/developer/1513421859) | [Watsco, Inc.](https://appshunter.io/developer/510378878) |

## What reviewers say

### Ductulator

[App page](https://appshunter.io/ios/app/ductulator/id1528030964)

This app provides a simple and efficient tool for calculating the dimensions of square ventilation ducts. It's designed for engineers, architects, and contractors to generate data for mechanical ventilation, cooling, and HVAC projects. Quickly validate residential and commercial solutions with this easy-to-use calculator.

**Highlights:** Calculate equivalent round diameter of square ducts, Convert square duct dimensions by volume ratio, Provide metric equivalence, Validate residential and commercial solutions, Designed for engineers and architects

**Features:** macOS Compatibility

**In-app purchases:** none


### TEC Excelsior HVAC Pro+

[App page](https://appshunter.io/ios/app/tec-excelsior-hvac-pro-plus/id1610400044)

This app provides HVAC professionals with quick access to product information, pricing, and availability. It includes tools for searching equipment, verifying warranties, and accessing technical documents, streamlining on-site work.

**Highlights:** View pricing and order status, Real-time product availability, Search HVAC models and parts, Verify warranty and submit claims, Access spec sheets and diagrams, HVAC calculators (PT, Sub-Cool, Superheat), Branch locator and directions

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

**In-app purchases:** none


## Frequently asked questions

### Is Ductulator free?

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

### Is TEC Excelsior HVAC Pro+ free?

TEC Excelsior HVAC Pro+ is free to download, with no in-app purchases.

### Which has better reviews, Ductulator or TEC Excelsior HVAC Pro+?

TEC Excelsior HVAC Pro+ is rated higher. Ductulator averages 1.0 out of 5 from 2 ratings, while TEC Excelsior HVAC Pro+ averages 4.4 from 12 ratings.

### Do Ductulator or TEC Excelsior HVAC Pro+ have ads?

Neither Ductulator nor TEC Excelsior HVAC Pro+ shows ads.

### Which is updated more often, Ductulator or TEC Excelsior HVAC Pro+?

Ductulator ships an update weekly, and TEC Excelsior HVAC Pro+ every 2 months. Most recently, Ductulator was updated on October 12, 2026 and TEC Excelsior HVAC Pro+ on October 12, 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.*