Construction Calculator vs Deck Calculator & Planner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Construction Calculator
This app provides a comprehensive suite of tools for construction professionals and DIY enthusiasts. It offers precise calculations for decking, roofing, stairs, concrete, and more, with support for both metric and imperial units. Designed for jobsite use, it works offline and provides clear visuals for accurate on-site measurements.
- Decking and flooring calculations
- Roofing material and coverage estimators
- Stair and stringer rise/run calculations
- Concrete, asphalt, and gravel volume estimators
- Slope, pitch, and angle framing helpers
- Unit converter with mixed-unit support
- Offline functionality
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Build faster, measure smarter. Pro² is a complete construction calculator for decking, roofing, concrete, stairs, framing and precise on-site measurements. It’s made for builders, carpenters, contractors and serious DIY who need accurate answers in seconds. DECKING & FLOORING • Area, board runs, spacing and waste allowance • Material takeoff for boards and joists ROOFING (METAL & TILE) • Coverage and sheet/tile counts • Overhangs, pitch, angle and rafter length helpers STAIRS & STRINGERS • Rise/run, slope %, angle (°) and stringer length • Clear breakdowns and step-by-step visuals BALUSTERS, RAILING & EVEN SPACING • Perfect marks from 0 to full length • Spacing tables for clean, consistent layouts CONCRETE, ASPHALT, GRAVEL & SOIL • Volume estimators for slabs, pads, footings and fills • Smart rounding for real-world quantities SLOPE, PITCH & ANGLES • Fast framing helpers for cuts and layout • Metric and imperial support in every tool UNIT CONVERTER • Length, area, volume, density and weight • Built for mixed-unit jobs (mm, ft, inches) QUICK CALCULATOR • Running history with one-tap copy/share MADE FOR THE JOBSITE • Fraction support and practical defaults • Works fully offline—no signal required • Clean visuals that stay readable outdoors WHY PROS USE PRO² • One app instead of juggling multiple separate tools • Accurate results, simple inputs and clear diagrams • New tools and improvements arrive regularly based on user feedback Pro² is built for professional construction, carpentry, decking, roofing and framing work—yet intuitive enough for DIY home projects. Upgrade to unlock additional tools and advanced features when you’re ready to grow your toolkit. SUBSCRIPTION TERMS • Carpenter Pro is an optional auto-renewing subscription with Weekly and Annual plans. • A 3-day free trial is available on the Annual plan. • Payment is charged to your Apple ID and subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. • You can manage or cancel your subscription in your App Store account settings. • Lifetime is a one-time purchase and does not auto-renew. • The localized price is shown in-app before you confirm. Terms of Use (Apple EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://shapkin.dev/apps/carpenter/privacy.html
Deck Calculator & Planner
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Planning a deck? Type the width, depth and height. Deck Calculator & Planner draws the deck to scale and lists everything you need: joists, beams, posts, footings, concrete, decking, screws, railing and stairs. Free to plan. One purchase unlocks PDF export, the cut list and cost totals. No subscription. No account. What the app gives you: - A scaled plan you can see and adjust as you change the size, attached or freestanding - A full material list, grouped by framing, footings and concrete, decking and hardware, with your own prices and a running total - Stairs worked out for you: rise, run, tread count and stringers - A joist and beam check against published span tables, with a flag when a choice is outside the table - Railing counted out: posts and balusters, spaced to keep gaps under 4 inches - A PDF you can print or send, with a cut list page for the lumber yard Deck Planner helps you plan and estimate. It is not engineering advice and it does not replace your building department, a licensed engineer or a contractor. Span and footing checks come from published prescriptive tables for typical conditions. Your town may use a different code edition, snow load, frost depth or soil value. Most decks need a permit. Check with your local permit office before you buy materials or build.
Screenshots
Verdict
The clearest difference is device support: Deck Calculator & Planner at 3 against Construction Calculator's 1. Deck Calculator & Planner also leads on iOS requirement (15.0 vs 18.0). On price, update cadence, ads and in-app purchases 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. Construction Calculator sells 15 in-app purchases, starting at $2.99 per 7 days and Deck Calculator & Planner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Construction Calculator ships an update every 2 weeks, Deck Calculator & Planner fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Construction Calculator | Deck Calculator & Planner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (24 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 24 — better | — |
| Update frequency | Every 2 weeks — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 62 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Shapkin Dev | Commonwealth Business Systems |
In-app purchases
Construction Calculator
- Carpenter PRO - Weekly$2.997 Days
- Full Access — Weekly$5.997 Days
- Carpenter PRO — Annual3 Days trial$19.991 Year
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- Full Access — Annual3 Days trial$39.991 Year
- RL Level & Benchmark Calculator$3.99
- Gravel Volume Calculator$3.99
- Stair Stringer & Rise Run Calc$3.99
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- Soil Excavation Volume Calculator$3.99
- Asphalt Tonnage Calculator$3.99
- Right Triangle & Pitch Calculator$3.99
- Running Measurements Calculator$3.99
- Unit Converter: Feet & Metric$3.99
- Paint Area Coverage Estimator$3.99
- Lifetime Access$39.99
- Lifetime Access$79.99
Deck Calculator & Planner
- Full Unlock$9.99
Questions
Is Construction Calculator free?
Is Deck Calculator & Planner free?
Do Construction Calculator or Deck Calculator & Planner have ads?
Which is updated more often, Construction Calculator or Deck Calculator & Planner?
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