Triple J Ductwork vs Digiduct
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Triple J Ductwork
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.
- Custom part quoting
- Part picking tool
- Measurement specification
- Sheet metal fabrication
- Ductwork services
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Triple J Ductwork in Waterford, Michigan specializing in high quality commercial and residential ductwork, spiral ductwork, custom sheet metal products, metal signs, metal art, and heating and cooling products. Established in 1997 we fabricate metal products for projects of all sizes. This app allows you to obtain a quote for custom parts with a part picking tool and space to specify custom measurements.
Digiduct
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.
- 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
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The Digiduct app is a powerful tool designed for HVAC professionals, supporting everything from design calculations to real-time field verification. Built utilizing the equations and recommendations from the ASHRAE Fundamentals – Duct Design chapter, it ensures your calculations are accurate and reliable, saving you time and reducing errors. Key Features: • Multiple Shape Sizing Options: Supports sizing for rectangular, round, and flat oval ducts, offering flexibility for various duct designs. • Customizable Dimensions: For rectangular and oval ducts, users can lock in one dimension, and the app calculates the other, ensuring precise results based on CFM, pressure drop due to friction, or velocity. • Duct Location Intelligence: offers the user predefined parameters to use as starting point and reference when selecting duct sizes so users at HVAC experience level can make confident selections. Why Choose Digiduct? Unlike other duct sizing tools, Digiduct goes above and beyond. It doesn’t just provide basic size outputs—it evaluates the location and context of your duct (high-pressure vs. low-pressure, shaft vs. plenum), alerting you if your selection exceeds maximum pressure drop or velocity limits. This added layer of intelligence ensures higher accuracy and gives users confidence that their sizing is optimal for the application. Get the assurance of precision with Digiduct—designed to meet the demands of real-world HVAC scenarios.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Triple J Ductwork | Digiduct |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.6 (11 ratings) |
| Number of ratings | 2 | 11 — better |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 24 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | BiznetIS Net Inc | Syska Hennessy Group |
Customer experience
Triple J Ductwork
Digiduct
In-app purchases
Triple J Ductwork
No in-app purchases
Digiduct
No in-app purchases
Questions
Is Triple J Ductwork free?
Is Digiduct free?
Which has better reviews, Triple J Ductwork or Digiduct?
Do Triple J Ductwork or Digiduct have ads?
Which is updated more often, Triple J Ductwork or Digiduct?
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