# Contractor Calc Pro — 20 Pro Calculators. One App. > Construction jobsite calculators for material estimates and cost calculations. (iPhone/iPad app by ZIma Logistics LLC.) - Source: https://appshunter.io/ios/app/contractor-calc-pro/id6761248901 (this page in markdown: same URL + `.md`) - Developer: [ZIma Logistics LLC](https://appshunter.io/developer/1883563240) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 18.0 · 5 MB - Languages: American English - Released: 2026-03-28 - Data updated: 2026-08-27 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/contractor-calc-pro/id6761248901/reviews.md ## What is Contractor Calc Pro? 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. ## Key features - 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 ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Pro Unlock | $4.99 | one-time | ## Frequently asked questions about Contractor Calc Pro ### What is Contractor Calc Pro? Contractor Calc Pro is a mobile application that offers 20 essential construction calculators to help users with instant material estimates and real cost calculations directly on the jobsite. It supports offline use and allows for saving and exporting estimates. ### Does Contractor Calc Pro have ads? No, Contractor Calc Pro is ad-free. The description explicitly states 'no ads,' ensuring an uninterrupted user experience for calculations and estimates. ### How much does Contractor Calc Pro cost? Contractor Calc Pro offers free calculators and a Pro version for $4.99 as a one-time purchase. There is no subscription required, ever. ### Can I use Contractor Calc Pro offline? Yes, Contractor Calc Pro can be used offline. This feature allows users to perform calculations and estimates without needing an internet connection, making it ideal for jobsite conditions. ### What kind of estimates can Contractor Calc Pro generate? Contractor Calc Pro can generate estimates for a wide range of materials including drywall, stairs, gutters, insulation, decks, rebar, concrete, lumber, paint, and fencing. It also provides professional PDF estimates for clients. ### How does Contractor Calc Pro handle pricing for estimates? Users can set their own material prices in the app's Settings. This allows for accurate local estimates tailored to specific jobsite needs and material costs. ### Is my data safe with Contractor Calc Pro? Yes, Contractor Calc Pro does not collect any personal data. Your estimates and quotes remain on your device, with an optional backup to your own iCloud Drive that is not accessible by the developer. ### What devices is Contractor Calc Pro available on? Contractor Calc Pro is available on iOS devices, as indicated by the mention of iCloud Drive backup. The specific version is 1.2.8, last updated on June 22, 2026. ## Version history (last 5 releases) ### 1.2.8 — 2026-06-22 - Improved launch reliability on iPad — the app now opens dependably on every device and the latest iPadOS. ### 1.2.7 — 2026-06-18 v1.2.7 - Improved launch stability and reliability on the latest iOS. - More dependable iCloud restore when setting up on a new device. v1.2.4 - Metric mode now shows results in metric units across Drywall, Deck, and Gutter estimates - Ceiling height and cached dimensions stay accurate when you switch between Imperial and Metric - Clearer feedback on Chimney BTU entries and other numeric fields - Restore Purchase now confirms when there is nothing to restore - Saved Calculations delete is more reliable - Performance and reliability improvements under the hood ### 1.2.3 — 2026-05-23 - Professional Quote Builder — create itemized quotes with markup, tax, and customer info (Pro) - Custom material pricing — set your own prices per category (Pro) - Edit calculator results — add or remove line items before saving or exporting - Reliability and performance improvements ### 1.2.1 — 2026-04-23 - 10 NEW calculators: Board Feet, Framing, Concrete, Roof Pitch, Roof Area, Shingles, Hip/Valley, Crown Moulding, Paint, Fence - Fraction input — type measurements the way you think: 5 1/2", 5' 6-1/2" - Fraction precision setting (1/8", 1/16", 1/32") - Input validation with clear error feedback on all calculators - New pricing categories: Carpentry, Concrete, Roofing, Paint, Fence - VoiceOver accessibility improvements - Improved data recovery (in-memory fallback if store is corrupted) ### 1.1 — 2026-04-17 - 10 construction calculators with real-world formulas - Custom material pricing — set your local prices - Save & recall calculations by job name - PDF export for professional estimates - IRC, NFPA 211 & SMACNA code compliance checks - Tap & Drill favorites - 100% offline — no account required ## More apps by ZIma Logistics LLC - [Splitr: Run Calculator](https://appshunter.io/ios/app/splitr-run-calculator/id6760271991) - [Lift: Gym Workout Tracker](https://appshunter.io/ios/app/lift-gym-workout-tracker/id6760431697) - [Ranked Choice: Group Vote](https://appshunter.io/ios/app/ranked-choice-group-vote/id6760730059) - [BugOut: Prep and Test](https://appshunter.io/ios/app/bugout-prep-and-test/id6760804087) - [Zima: Ballistics Calculator](https://appshunter.io/ios/app/zima-ballistics-calculator/id6760805492) - [Zima: Offline AI](https://appshunter.io/ios/app/zima-offline-ai/id6760844773) All apps by ZIma Logistics LLC: https://appshunter.io/developer/1883563240 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*