Comparison

Duct Construction vs Contractor Estimate Pro

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

Head to head
About

Duct Construction

This app helps determine duct construction and reinforcement options based on duct size and system pressure class. It provides condensed lists of suitable options, saving time spent on manual calculations and table lookups. Results are based on industry standards for galvanized steel duct sheets.

Highlights
  • Duct size range from 2" to 120"
  • Pressure classes up to 4 in.wg
  • Calculates duct weights per linear foot
  • Determines required duct gauge and reinforcement spacing
  • Clear illustrations for reinforcement types
  • Simple and effective UI design
Features
Read full description

Get all duct construction and reinforcement options by entering the duct size and system pressure class. The aim of the app is to save time spent browsing through tables and texts to determine suitable options, by relying on the most widely used standards and providing a condensed list of available duct construction options. The results are based on galvanized steel duct sheets conforming to ASTM A653 & A924. The app does not cover all aspects of duct construction, as it is intended as a guide; Reliance on related standards, as well as good engineering sense is the basis for proper design. Features: 1. Duct sizes from 2" to 120" 2. Pressure classes 0.5 in.wg, 1 in.wg, 2 in.wg, 3 in.wg and 4 in.wg. 3. Provides the duct weights for each option per linear foot. 4. Provides required duct gauge and reinforcement spacing. 5. Clear illustration for each reinforcement type, as well as dimensions. 6. Simple and effective UI design. Roadmap / Upcoming updates: 1. SI units. 2. More pressure class options. 3. User will be able to save and retreive duct data for future reference. 3. More Reinforcement options, including tie-rodding. Request a feature: welmurr@icloud.com

About

Contractor Estimate Pro

Features
Read full description

Contractor Estimate Pro is a mobile estimating app built for contractors who need accurate, customizable estimates—fast. Tailored for excavation and landscaping contractors, general contractors and other trades that require full control over how their bids are built, without bloated software or spreadsheets. Designed to be used on mobile devices, work on your estimates from anywhere at anytime. Build estimates using your own materials, labor, equipment, trucking, and crews. Save templates for repeatable work, make quick quantity adjustments, and generate professional estimates directly from your phone or tablet. No forced pricing databases. No complicated workflows. Just a clean, contractor-focused estimating tool. Key Features Custom materials, labor, equipment, trucking, and crew costs Save reusable templates to speed up future bids Simple aggregate quantity calculations Professional PDF export for easy sharing with customers Works great with simple estimates or large unit price bids Built for mobile and office use Who It’s For Excavation contractors Landscaping contractors Utility contractors Electrical, Plumbing, HVAC, Concrete, and Specialty Trades General Contractors Subscription Details Free 30-day trial $4.99 per month after trial Cancel anytime Why Contractor Estimate Pro Contractor Estimate Pro is built to help contractors bid faster, stay consistent, and stay in control. If you’re tired of fighting spreadsheets or paying for software that does more than you need, this app keeps estimating simple and effective. All data is stored on your local device with option to export copies and backup to a cloud storage of your choice. Privacy Policy: https://linesitetech.com/contractor-estimate-pro-privacy-policy Terms of Use: Apple’s standard Licensed Application End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/.

Screenshots

Duct Construction4 screens
Contractor Estimate Pro4 screens

Verdict

The call

The clearest difference is price: Contractor Estimate Pro at Free against Duct Construction's $0.99. Contractor Estimate Pro also leads on update cadence (every 2 months vs every 10 months) and iOS requirement (15.1 vs 17.6). Duct Construction's advantage is in-app purchases (none vs 1) and chart position (#121 vs unranked). On ads 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

Contractor Estimate Pro is free to download; Duct Construction costs $0.99 up front. Contractor Estimate Pro sells 1 in-app purchase, starting at $4.99 per month. Duct Construction asks for nothing beyond the download.

UpkeepUpdate frequency

Duct Construction ships an update every 10 months, Contractor Estimate Pro every 2 months. The most recent releases landed on September 25, 2026 and September 13, 2026 respectively.

Scorecard5 real differences · 6 level
Duct Construction versus Contractor Estimate Pro: the parameters behind the verdict, then further details
ParameterDuct ConstructionContractor Estimate Pro
Price$0.99Free — better
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
Best chart rank#121 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size1 MB38 MB
Age rating4+4+
DeveloperWassim MurrLinesite Tech

In-app purchases

None

Duct Construction

No in-app purchases

1 purchases

Contractor Estimate Pro

Subscriptions1
  • Contractor Estimate Pro (Monthly)1 Month trial$4.991 Month

Questions

Is Duct Construction free?
Duct Construction costs $0.99, with no in-app purchases.
Is Contractor Estimate Pro free?
Contractor Estimate Pro is free to download, with in-app purchases available.
Do Duct Construction or Contractor Estimate Pro have ads?
Neither Duct Construction nor Contractor Estimate Pro shows ads.
Which is updated more often, Duct Construction or Contractor Estimate Pro?
Duct Construction ships an update every 10 months, and Contractor Estimate Pro every 2 months. Most recently, Duct Construction was updated on September 25, 2026 and Contractor Estimate Pro on September 13, 2026.

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