# Triple J Ductwork vs Digiduct

The clearest difference is rating: Triple J Ductwork at 5.0 against Digiduct's 4.6. Triple J Ductwork also leads on monetization model (free vs ad-supported) and iOS requirement (8.0 vs 26.2). Digiduct's advantage is update cadence (every 2 months vs every 5 months) and ratings volume (11 vs 2). 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.

Triple J Ductwork 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 2, so its average is the more settled of the two.

Triple J Ductwork ships an update every 5 months, Digiduct every 2 months. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Triple J Ductwork | Digiduct |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/triple-j-ductwork/id1156907795/reviews)** | [4.6 (11 ratings)](https://appshunter.io/ios/app/digiduct/id6738926359/reviews) |
| Number of ratings | 2 | **11** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 24 MB | 4 MB |
| Requires iOS | **8.0** | 26.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BiznetIS Net Inc](https://appshunter.io/developer/682007657) | [Syska Hennessy Group](https://appshunter.io/developer/1782943081) |

## What reviewers say

### Triple J Ductwork

[App page](https://appshunter.io/ios/app/triple-j-ductwork/id1156907795)

This app allows users to request quotes for custom metal parts, including ductwork and signs. It features a part-picking tool and a space to input specific measurements for fabrication projects.

**Highlights:** Custom part quoting, Part picking tool, Measurement specification, Sheet metal fabrication, Ductwork services

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Triple J Ductwork free?

Triple J Ductwork is free to download, with no in-app purchases.

### Is Digiduct free?

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

### Which has better reviews, Triple J Ductwork or Digiduct?

Triple J Ductwork is rated higher. Triple J Ductwork averages 5.0 out of 5 from 2 ratings, while Digiduct averages 4.6 from 11 ratings.

### Do Triple J Ductwork or Digiduct have ads?

Neither Triple J Ductwork nor Digiduct shows ads.

### Which is updated more often, Triple J Ductwork or Digiduct?

Triple J Ductwork ships an update every 5 months, and Digiduct every 2 months. Most recently, Triple J Ductwork was updated on October 12, 2026 and Digiduct on October 16, 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.*