Construction Calculator A1 vs ONE VANS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Construction Calculator A1
This comprehensive tool offers over 500 construction calculators, from basic material quantities to complex bills of quantities. It generates automatic drawings, manages material prices, and provides learning resources for civil engineers and contractors.
- 500+ construction calculators
- Concrete, rebar, and steel calculations
- Feet-inch calculator
- Bill of Quantities (BOQ)
- Automatic drawings
- Material price library
- Unit converter
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The #1 construction calculator trusted by 1M+ contractors, builders, and engineers worldwide. Construction Calculator A1 — the complete civil engineering toolkit for contractors, builders and engineers. 500+ calculators, from a single slab to a client-ready Bill of Quantities. CONCRETE CALCULATOR • Slabs, footings, columns, beams, stairs, walls & culverts • Instant material quantities: cement bags, sand, aggregate • Mix ratios and grade selection for any specification REBAR & STEEL CALCULATOR • Bar Bending Schedule (BBS) with shape codes and cutting lengths • Weight calculator for metric and US bar sizes (#3–#11) • Lap length, cover & spacing calculations • Steel tonnage for structural estimates FEET-INCHES CALCULATOR • Add, subtract, multiply, divide in feet-inches-fractions • No decimal conversion needed • Running tape you can review and reuse BILL OF QUANTITIES (BOQ) — NEW • Send any calculation straight to a BOQ • Organise by project, track total value and % priced • Professional report with your company header and signature • Export as PDF or Excel AUTOMATIC DRAWINGS — NEW • Calculators draw a dimensioned sketch of what you entered • Brickwork, steel shapes, concrete sections, excavation, stairs • Drawings and a DIMENSIONS panel included in every PDF MATERIAL PRICE LIBRARY — NEW • Store your own rates in your own currency • Rates auto-fill into cost fields across the app • Six regional presets with local materials and units APPLE WATCH APP — NEW • Converter, material weight, volume, diagonal and rebar on your wrist • Prices synced from iPhone, with full calculation history AREA & VOLUME • 50+ shapes: rectangle, circle, triangle, trapezoid, polygons, prisms, cones, spheres and more • Draw Shape and GPS Area for irregular plots • Room area, paint coverage, flooring and excavation volumes UNIT CONVERTER • Length, area, volume, weight, pressure, power, speed, density and more • Construction-specific units throughout LEARN — NEW • Civil engineering articles, checklists and reference charts • Topic quizzes with instant explanations • Daily streaks, XP and achievement badges PROFESSIONAL FEATURES • Save and organise calculations by project, with notes and photos • Share estimates with clients instantly • Construction cost estimator with breakdown charts and quotations • Company branding on every report • Google Drive and iCloud backup, cloud sync across devices • Metric and Imperial, 16 languages, light and dark themes • Works offline — calculations need no internet SUBSCRIPTION INFORMATION Construction Calculator Pro is available as a monthly or yearly auto-renewing subscription, or as a one-time Lifetime purchase. • Payment is charged to your Apple ID account at confirmation of purchase. • Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. • Your account is charged for renewal within 24 hours prior to the end of the current period, at the rate of your selected plan. • Manage or cancel your subscription in your App Store account settings after purchase. Privacy Policy: https://www.binaryandbricks.com/app/privacypolicy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Built for real job sites. Download now and estimate like a pro.
ONE VANS
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1 Vans is a construction site reporting app designed to streamline daily reporting and site tracking for engineers, contractors, and field teams. Whether you are managing large projects or tracking day-to-day progress, 1 Vans helps capture reports, log equipment time, upload media, and share updates from the field. Key Features: • Secure login for engineers and contractors • Daily work reports including materials, workers, equipment usage, and progress • Photo and video uploads of site activity • Location-based verification at report submission time • Equipment usage tracking with start and end times • Purchase order request submissions from site • Incoming material reporting and inventory tracking • Site gallery for reviewing submitted photos and videos • Access reference documents like blueprints and plans • Digital signature support for report verification • Real-time local weather updates to aid in planning • Manage tasks more effectively on your construction site or daily workflow 1 Vans helps teams manage site work efficiently while keeping reporting secure and organized.
Screenshots
Verdict
The clearest difference is in-app purchases: ONE VANS at none against Construction Calculator A1's 6. ONE VANS also leads on ads (none vs shown) and update cadence (every 9 days vs monthly). On price 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
Both are free to download. Construction Calculator A1 sells 6 in-app purchases, starting at $2.99 per month. ONE VANS asks for nothing beyond the download.
Construction Calculator A1 ships an update monthly, ONE VANS every 9 days. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.
| Parameter | Construction Calculator A1 | ONE VANS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (29 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 29 — better | — |
| Update frequency | Monthly | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 182 MB | 38 MB |
| Age rating | 4+ | 17+ |
| Developer | Binary And Bricks Pvt Ltd | AKASHSINH C PARMAR |
In-app purchases
Construction Calculator A1
- Pro access monthly subscription$2.991 Month
- Pro access yearly subscription$24.991 Year
- 100 AI Credits$0.99
- 500 AI credits$3.99
- 500 AI credits$9.99
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- Lifetime Access$39.99
ONE VANS
No in-app purchases
Questions
Is Construction Calculator A1 free?
Is ONE VANS free?
Do Construction Calculator A1 or ONE VANS have ads?
Which is updated more often, Construction Calculator A1 or ONE VANS?
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