# Ductulator vs TEC Excelsior HVAC Pro+

The clearest difference is price: TEC Excelsior HVAC Pro+ at Free against Ductulator's $3.99. TEC Excelsior HVAC Pro+ also leads on iOS requirement (16.0 vs 18.6). Ductulator's advantage is rating (4.7 vs 4.4) and ratings volume (353 vs 12). On update cadence, ads, in-app purchases and device support there is nothing between them.

TEC Excelsior HVAC Pro+ is free to download; Ductulator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Ductulator holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Ductulator has 353 ratings behind it against 12, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Ductulator | TEC Excelsior HVAC Pro+ |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.7 (353 ratings)](https://appshunter.io/ios/app/ductulator-duct-sizing/id1474939475/reviews)** | [4.4 (12 ratings)](https://appshunter.io/ios/app/tec-excelsior-hvac-pro-plus/id1610400044/reviews) |
| Number of ratings | **353** | 12 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Ad-supported |
| Best chart rank | **#28** | — |
| Size | 1 MB | 163 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wassim Murr](https://appshunter.io/developer/1474939474) | [Watsco, Inc.](https://appshunter.io/developer/510378878) |

## What reviewers say

### Ductulator

[App page](https://appshunter.io/ios/app/ductulator-duct-sizing/id1474939475)

**Currently charting:** #28 Top Paid · Productivity (US App Store)

Instantly calculate HVAC duct sizes based on airflow, friction rate, or velocity. This tool provides accurate duct dimensions in seconds without needing charts, supporting various duct types and units.

**Highlights:** Instant duct sizing, Friction rate or velocity calculation, Multiple valid duct dimensions, IP and SI units support, Detailed sizing mode, Rectangular, circular, and flexible ducts

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

**In-app purchases:** none

**What reviewers like**

- 👍 Very helpful for duct sizing
- 👍 Easy to use in the field
- 👍 Saves time
- 👍 Seamless imperial/metric transitions
- 👍 Excellent tool for duct design

**What reviewers complain about**

- 👎 App should be free
- 👎 Functionality is pointless for some needs
- 👎 Doesn't help with traditional residential HVAC duct sizing
- 👎 App is a scam
- 👎 Decimal point doesn't work

**Reported bugs**

- Decimal point doesn't work on calculator
- New flex option isn't working properly
- Friction rate can't be changed in the latest version
- Skips duct sizes (e.g., 24-26)

**Requested features**

- Ability to pick duct size and see CFM
- Include flat oval ducts
- Option to select round or square duct
- Ability to enter duct size and get CFM
- Option for flex duct


### 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 costs $3.99, 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+?

Ductulator is rated higher. Ductulator averages 4.7 out of 5 from 353 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 every 2 months, and TEC Excelsior HVAC Pro+ every 2 months. Most recently, Ductulator was updated on October 26, 2026 and TEC Excelsior HVAC 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.*