Comparison

iBuild vs Contractor Calc Pro

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

Head to head
About

iBuild

Features
Read full description

iBuild is the construction material calculator designed for builders, contractors, and DIY enthusiasts. Estimate exactly what you need to buy for your next project in seconds. Calculate quantities for 16 material types across 6 categories: Drywall and panels (sheets, screws, tape, compound, studs and tracks), Masonry (hollow brick, solid brick, and concrete block with mortar), Flooring (ceramic, porcelain, vinyl, and laminate with adhesive and grout), Interior and exterior paint with coverage per coat, Roofing (ceramic tiles and corrugated metal sheets) and Insulation. Enter dimensions or total area, add door and window openings, adjust waste percentage, and get a full shopping list with exact quantities, bags, cans, and linear meters. Use your iPhone camera to measure walls and surfaces with augmented reality. Point, tap, and get real-time dimensions with precision. Measurements feed directly into the calculator. Draw floor plans with walls, doors, windows, and text labels. Pinch to zoom, pan to navigate, and see live stats. Export professional PDF plans with dimensions and grid overlay, ready to share. Save every calculation with a custom title. Review past estimates anytime with full material breakdowns. Available in Spanish, English, French, Portuguese, Arabic, Hindi, Russian, and Simplified Chinese. Built for the job site. Fast, offline, and precise.

About

Contractor Calc Pro

This app provides 20 essential construction calculators for instant material estimates with real costs. It offers fraction input, offline calculation, and the ability to save and export estimates as PDFs. Users can customize material prices for accurate local jobsite calculations.

Highlights
  • 20 essential construction calculators
  • Instant material estimates with real costs
  • Fraction input (5 1/2, 5' 6-1/2", decimals)
  • Offline calculation
  • Save and recall calculations by job name
  • Export professional PDF estimates
  • Customizable material prices
Features
Read full description

Stop juggling spreadsheets on the jobsite. Contractor Calc Pro puts 20 essential construction calculators in your pocket — instant material estimates with real costs. FREE CALCULATORS - Drywall Estimator — walls + ceiling sheets, screws, tape, mud & corner bead - Stair Calculator — rise, run, stringer length with IRC code pass/fail - Tap & Drill Chart — searchable UNC, UNF, Metric & NPT reference UNLOCK PRO ($4.99 one-time — no subscription, ever) - Gutter & Downspout — SMACNA sizing from roof area + rainfall - Insulation R-Value — IRC 2021 requirements by climate zone - Deck Materials — full BOM: boards, joists, posts, hardware, footings - Rebar Calculator — slab, footing & wall modes with cut list - Chimney & Flue — NFPA 211 flue sizing + materials - Septic System — tank, drain field & trench sizing by soil type - Spray Nozzle — GPA application rate + tank mix volumes - Board Feet — lumber volume and cost by species - Framing — stud count, plates, king/jack/cripple studs - Concrete — slab & pier volume, cubic yards, 60/80 lb bag counts - Roof Pitch — rafter length from pitch or angle - Roof Area — sloped surface from building footprint - Shingle Estimator — squares, bundles, underlayment, ridge cap - Hip/Valley Rafter — hip run, rafter length, jack common difference - Crown Moulding — compound miter angles for flat & nested cuts - Paint — gallons + primer from room dimensions - Fence — posts, pickets, rails & concrete for any fence run BUILT FOR THE JOBSITE - Fraction input — type 5 1/2, 5' 6-1/2", or decimals - Set your own material prices in Settings for accurate local estimates - Save calculations by job name — recall them anytime - Export professional PDF estimates to share with clients - Tap & Drill favorites — pin the sizes you use most - Calculate offline — no account, no tracking, no ads - Optional iCloud Drive backup — keep your estimates, quotes, and prices safe when you switch phones, all in your own iCloud (only you can see it) One payment. No subscription. No ads. No personal data collected — just anonymous usage diagnostics. Your estimates and quotes stay on your device, with optional backup to your own iCloud Drive that we never see.

Screenshots

iBuild4 screens
Contractor Calc Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: iBuild at none against Contractor Calc Pro's 1. iBuild also leads on device support (3 vs 1). Contractor Calc Pro's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price and iOS requirement 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. Contractor Calc Pro sells 1 one-off in-app purchase. iBuild asks for nothing beyond the download.

UpkeepUpdate frequency

iBuild ships an update every 2 months, Contractor Calc Pro every 3 weeks. The most recent releases landed on September 9, 2026 and September 26, 2026 respectively.

Scorecard4 real differences · 5 level
iBuild versus Contractor Calc Pro: the parameters behind the verdict, then further details
ParameteriBuildContractor Calc Pro
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS17 — better18.0
Further details — not scored
Size12 MB5 MB
Age rating4+4+
DeveloperRodrigo ProkopowiczZIma Logistics LLC

In-app purchases

None

iBuild

No in-app purchases

1 purchases

Contractor Calc Pro

One-time1
  • Pro Unlock$4.99

Questions

Is iBuild free?
iBuild is free to download, with no in-app purchases.
Is Contractor Calc Pro free?
Contractor Calc Pro is free to download, with in-app purchases available.
Do iBuild or Contractor Calc Pro have ads?
iBuild shows ads; Contractor Calc Pro does not.
Which is updated more often, iBuild or Contractor Calc Pro?
iBuild ships an update every 2 months, and Contractor Calc Pro every 3 weeks. Most recently, iBuild was updated on September 9, 2026 and Contractor Calc Pro on September 26, 2026.

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