# measureQuick HVAC vs Ductulator

The clearest difference is price: measureQuick HVAC at Free against Ductulator's $3.99. measureQuick HVAC also leads on iOS requirement (12.0 vs 18.6). Ductulator's advantage is ratings volume (353 vs 8) and rating (4.7 vs 4.5). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

measureQuick HVAC 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 4.5. That said, the two scores are not equally well evidenced: Ductulator has 353 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 38% of measureQuick HVAC's written reviews are positive against 50% of Ductulator's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | measureQuick HVAC | Ductulator |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [4.5 (8 ratings)](https://appshunter.io/ios/app/measurequick-hvac/id1273187731/reviews) | **[4.7 (353 ratings)](https://appshunter.io/ios/app/ductulator-duct-sizing/id1474939475/reviews)** |
| Number of ratings | 8 | **353** |
| Positive reviews | 38.2% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Best chart rank | — | **#86** |
| Size | 144 MB | 1 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [measureQuick](https://appshunter.io/developer/1227222427) | [Wassim Murr](https://appshunter.io/developer/1474939474) |

## What reviewers say

### measureQuick HVAC

[App page](https://appshunter.io/ios/app/measurequick-hvac/id1273187731)

This application helps HVAC technicians diagnose and repair systems quickly and accurately. It offers robust diagnostic tools to identify problems faster, leading to fewer callbacks and more satisfied customers. It supports various HVAC systems, making it an all-in-one solution for professionals.

**Highlights:** Quick HVAC system diagnosis, Accurate repair solutions, Reduced troubleshooting time, All-in-one HVAC system support, Improved customer satisfaction

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent diagnostic tool
- 🚀 Improves efficiency and standardization
- 💡 Elevates the HVAC industry
- 👍 Useful for both experienced and junior technicians
- 👍 Provides professional-looking reports

**What reviewers complain about**

- 🐛 Frequent crashes and stability issues
- 🔒 Too much personal information required
- 💰 Overpriced, especially for the paid features
- 🔒 Restricting screenshot functionality behind a paywall
- 🔍 Overly complicated user interface

**Reported bugs**

- App not loading or showing a blank screen
- Bluetooth device connectivity issues
- Frequent need to delete and reinstall the app
- Incompatibility with newer iOS versions

**Requested features**

- Add support for more HVAC tools and equipment
- Improve compatibility with iOS updates
- Provide a more user-friendly classic view
- Offer a reasonable monthly/annual subscription option
- Add a static pressure gauge


### Ductulator

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

**Currently charting:** #86 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


## Frequently asked questions

### Is measureQuick HVAC free?

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

### Is Ductulator free?

Ductulator costs $3.99, with no in-app purchases.

### Which has better reviews, measureQuick HVAC or Ductulator?

Ductulator is rated higher. measureQuick HVAC averages 4.5 out of 5 from 8 ratings, while Ductulator averages 4.7 from 353 ratings.

### Do measureQuick HVAC or Ductulator have ads?

Neither measureQuick HVAC nor Ductulator shows ads.

### Which is updated more often, measureQuick HVAC or Ductulator?

measureQuick HVAC ships an update every 2 months, and Ductulator every 2 months. Most recently, measureQuick HVAC was updated on October 24, 2026 and Ductulator on October 25, 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.*