Comparison

Triple J Ductwork vs Digiduct

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Custom part quoting
  • Part picking tool
  • Measurement specification
  • Sheet metal fabrication
  • Ductwork services
Features
Read full description

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.

About

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.

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
Read full description

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

Triple J Ductwork3 screens
Digiduct4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 4 level
Triple J Ductwork versus Digiduct: the parameters behind the verdict, then further details
ParameterTriple J DuctworkDigiduct
PriceFreeFree
Rating5.0 (2 ratings) — better4.6 (11 ratings)
Number of ratings211 — better
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPodiPhone, iPad
Requires iOS8.0 — better26.2
Further details — not scored
Size24 MB4 MB
Age rating4+4+
DeveloperBiznetIS Net IncSyska Hennessy Group

Customer experience

Triple J Ductwork

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Digiduct

All ratings11 ratings
Positive90.9%
Neutral0.0%
Negative9.1%

In-app purchases

None

Triple J Ductwork

No in-app purchases

None

Digiduct

No in-app purchases

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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