Comparison

Blair Absolute Solutions vs Digiduct

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

Head to head
About

Blair Absolute Solutions

Features
Read full description

With the Blair Absolute Solutions mobile app, ordering is fast, convenient, and accurate for restaurants and retailers. View your personal order guide with the latest products and pricing, check out item details, and build your orders, anytime, from anywhere. You can also view your order history, leave "notes" or contact us directly through the Blair Absolute Solutions mobile app.

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

Blair Absolute Solutions4 screens
Digiduct4 screens

Verdict

The call

The clearest difference is update cadence: Digiduct at every 2 months against Blair Absolute Solutions's every 27 months. Blair Absolute Solutions's advantage is iOS requirement (15.1 vs 26.2). 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.

UpkeepUpdate frequency

Blair Absolute Solutions ships an update every 27 months, Digiduct every 2 months. The most recent releases landed on October 5, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 7 level
Blair Absolute Solutions versus Digiduct: the parameters behind the verdict, then further details
ParameterBlair Absolute SolutionsDigiduct
PriceFreeFree
Rating—4.6 (11 ratings) — better
Number of ratings—11 — better
Update frequencyEvery 27 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better26.2
Further details — not scored
Size14 MB4 MB
Age rating4+4+
DeveloperGrub Market Inc.Syska Hennessy Group

In-app purchases

None

Blair Absolute Solutions

No in-app purchases

None

Digiduct

No in-app purchases

Questions

Is Blair Absolute Solutions free?
Blair Absolute Solutions is free to download, with no in-app purchases.
Is Digiduct free?
Digiduct is free to download, with no in-app purchases.
Do Blair Absolute Solutions or Digiduct have ads?
Neither Blair Absolute Solutions nor Digiduct shows ads.
Which is updated more often, Blair Absolute Solutions or Digiduct?
Blair Absolute Solutions ships an update every 27 months, and Digiduct every 2 months. Most recently, Blair Absolute Solutions was updated on October 5, 2026 and Digiduct on October 24, 2026.

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