Contractor Calc Pro vs BuildCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
BuildCalc
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BuildCalc Pro is the free, no-ads construction calculator built for contractors, electricians, carpenters, and DIY pros. No subscriptions. No ads. Just fast, accurate calculations on the job site. CONCRETE - Slab calculator: cubic yards, cubic feet, and bag count - Column and tube calculator - Strip footing estimator FRAMING - Wall stud calculator (12", 16", 24" OC spacing) - Drywall sheet estimator - Lumber board feet calculator ROOFING - Shingle calculator with pitch multiplier - Roofing squares and bundle count ELECTRICAL - Ohm's Law: solve for any 2 of Voltage, Current, Resistance, or Watts - Wire gauge size guide - Conduit fill percentage with NEC pass/fail Privacy Policy: https://launchfast.live/buildcal/privacy.html Terms of service: https://launchfast.live/buildcal/terms.html
Screenshots
Verdict
The clearest difference is in-app purchases: BuildCalc at none against Contractor Calc Pro's 1. BuildCalc also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price and ads 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. Contractor Calc Pro sells 1 one-off in-app purchase. BuildCalc asks for nothing beyond the download.
| Parameter | Contractor Calc Pro | BuildCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 5 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | ZIma Logistics LLC | Lee Han sheng |
In-app purchases
Contractor Calc Pro
- Pro Unlock$4.99
BuildCalc
No in-app purchases
Questions
Is Contractor Calc Pro free?
Is BuildCalc free?
Do Contractor Calc Pro or BuildCalc have ads?
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