# Digiduct vs Easy Duct

The clearest difference is update cadence: Easy Duct at every 2 days against Digiduct's every 2 months. Easy Duct also leads on rating (5.0 vs 4.6) and monetization model (free vs ad-supported). Digiduct's advantage is ratings volume (11 vs 1). On price, ads and in-app purchases there is nothing between them.

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

Easy Duct holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Digiduct has 11 ratings behind it against 1, so its average is the more settled of the two.

Digiduct ships an update every 2 months, Easy Duct every 2 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Digiduct | Easy Duct |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (11 ratings)](https://appshunter.io/ios/app/digiduct/id6738926359/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/easy-duct/id6810881020/reviews)** |
| Number of ratings | **11** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Ad-supported | **Free** |
| Size | 4 MB | 3 MB |
| Requires iOS | 26.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Syska Hennessy Group](https://appshunter.io/developer/1782943081) | [Iman Alizadeh](https://appshunter.io/developer/6810881022) |

## What reviewers say

### Digiduct

[App page](https://appshunter.io/ios/app/digiduct/id6738926359)

This HVAC tool assists professionals with duct sizing calculations based on ASHRAE standards. It supports multiple duct shapes and offers intelligent features to ensure accurate and reliable designs for real-world scenarios.

**Highlights:** Duct sizing for rectangular, round, and flat oval ducts, Customizable dimensions with locked values, Duct location intelligence for context-aware sizing, Calculations based on CFM, pressure drop, or velocity, Alerts for exceeding pressure drop or velocity limits

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

**In-app purchases:** none


### Easy Duct

[App page](https://appshunter.io/ios/app/easy-duct/id6810881020)

This app calculates air duct sizes for HVAC design. It solves for missing values like airflow or head loss, allowing users to set multiple limits simultaneously. Results are presented with buildable size steps and detailed engineering data, functioning fully offline.

**Highlights:** Airflow, head loss, velocity, or duct size calculation, Simultaneous head loss and velocity limit checking, Buildable size steps for fabrication, Offline functionality, IP and SI unit conversion, Multiple friction models and engineering data

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Digiduct free?

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

### Is Easy Duct free?

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

### Which has better reviews, Digiduct or Easy Duct?

Easy Duct is rated higher. Digiduct averages 4.6 out of 5 from 11 ratings, while Easy Duct averages 5.0 from 1 ratings.

### Do Digiduct or Easy Duct have ads?

Neither Digiduct nor Easy Duct shows ads.

### Which is updated more often, Digiduct or Easy Duct?

Digiduct ships an update every 2 months, and Easy Duct every 2 days. Most recently, Digiduct was updated on October 24, 2026 and Easy Duct 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.*