# Ductulator vs Conduit HVAC Toolkit

Ductulator and Conduit HVAC Toolkit both sit at 4.7 stars, but that hides the real split: 100% of Conduit HVAC Toolkit's written reviews are positive against 50% of Ductulator's. Conduit HVAC Toolkit also leads on price (Free vs $3.99) and update cadence (every 3 weeks vs every 2 months). Ductulator's advantage is chart position (#35 vs unranked) and ratings volume (353 vs 40). On rating, ads, in-app purchases and monetization model there is nothing between them.

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

Conduit HVAC Toolkit holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Ductulator has 353 ratings behind it against 40, so its average is the more settled of the two. Written reviews point the same way: 50% of Ductulator's written reviews are positive against 100% of Conduit HVAC Toolkit's.

Ductulator ships an update every 2 months, Conduit HVAC Toolkit every 3 weeks. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Ductulator | Conduit HVAC Toolkit |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.7 (353 ratings)](https://appshunter.io/ios/app/ductulator-duct-sizing/id1474939475/reviews) | **[4.9 (40 ratings)](https://appshunter.io/ios/app/conduit-hvac-toolkit/id6444496270/reviews)** |
| Number of ratings | **353** | 40 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Best chart rank | **#35** | — |
| Size | 1 MB | 87 MB |
| Requires iOS | 18.6 | 18.6 |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wassim Murr](https://appshunter.io/developer/1474939474) | [Conduit Tech](https://appshunter.io/developer/1654960982) |

## What reviewers say

### Ductulator

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

**Currently charting:** #35 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


### Conduit HVAC Toolkit

[App page](https://appshunter.io/ios/app/conduit-hvac-toolkit/id6444496270)

This iPad app empowers HVAC contractors to quickly scan homes, generate 3D models, and perform certified load calculations. Visualize installations with augmented reality and create professional reports to build customer trust and close more sales.

**Highlights:** LiDAR-powered home scanning, 3D model creation, ACCA-certified load calculations, Augmented reality equipment visualization, Professional report generation, Faster sales process

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Ductulator free?

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

### Is Conduit HVAC Toolkit free?

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

### Which has better reviews, Ductulator or Conduit HVAC Toolkit?

Conduit HVAC Toolkit is rated higher. Ductulator averages 4.7 out of 5 from 353 ratings, while Conduit HVAC Toolkit averages 4.9 from 40 ratings.

### Do Ductulator or Conduit HVAC Toolkit have ads?

Neither Ductulator nor Conduit HVAC Toolkit shows ads.

### Which is updated more often, Ductulator or Conduit HVAC Toolkit?

Ductulator ships an update every 2 months, and Conduit HVAC Toolkit every 3 weeks. Most recently, Ductulator was updated on October 26, 2026 and Conduit HVAC Toolkit on October 27, 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.*