Comparison

Construction Calculator A1 vs Concrete Estimator

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

Head to head
About

Construction Calculator A1

This comprehensive civil engineering toolkit offers over 500 calculators for contractors, builders, and engineers. It provides instant material quantities, rebar calculations, unit conversions, and features for creating Bills of Quantities with automatic drawings and material price libraries. The app also includes educational resources and project management tools.

Highlights
  • 500+ construction calculators
  • Concrete, rebar, and steel calculations
  • Feet-inches calculator
  • Bill of Quantities (BOQ) generation
  • Automatic drawings and sketches
  • Material price library
  • Unit converter
  • Project organization and cloud sync
Features
Read full description

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.

About

Concrete Estimator

Features
Read full description

Know exactly how much concrete and material to order before the truck arrives. Concrete Estimator: Pro Tools is a fast, field-ready construction calculator for contractors, masons, estimators, landscapers, and DIY builders. Enter your measurements and get clear quantities without spreadsheets or guesswork. US CUSTOMARY BY DEFAULT Start immediately with feet, inches, square feet, cubic feet, cubic yards, pounds, and common 40 lb, 60 lb, and 80 lb bag sizes. Switch any calculation to metric whenever needed. 21 PRACTICAL CALCULATORS • Rectangular and circular slabs • Slabs from a measured area • Poured walls, strip footings, and pad footings • Circular and rectangular columns • Post holes with round or rectangular post displacement • Hollow tubes and rings • Stairs, curbs, and gutters • Rebar grids and wire mesh • Slab formwork • Block walls, block fill, and mortar bags • Aggregate and base material • Concrete mix ratios • Truckload, bag, and cost comparisons BUILT FOR REAL JOBS • Add adjustable waste or overage • See required volume and order quantity separately • Get results in cubic yards, cubic feet, and cubic meters • Estimate bags, truckloads, rebar, mesh, blocks, and more • Save estimates as offline projects • Create professional PDF reports • Share clear project summaries • Use exact unit conversions and full-precision calculations • Follow clean diagrams showing which dimensions to enter • No ads and no account required FREE TO START Pro unlocks all 21 calculators, unlimited saved projects, and PDF reports. Your projects stay stored locally on your device, so you can estimate on the jobsite even without an internet connection. IMPORTANT Results depend on the dimensions and assumptions you enter, including waste, bag yield, density, compaction, and mix factors. Confirm quantities with your supplier and local requirements before ordering. This app estimates materials; it does not provide structural design or code-compliance advice. Privacy Policy: https://mathhero.space/legal/concrete-calc/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 10 LANGUAGES Use the app in English, Spanish, French, German, Italian, Portuguese, Dutch, Japanese, Korean, or Simplified Chinese.

Screenshots

Construction Calculator A14 screens
Concrete Estimator4 screens

Verdict

The call

The clearest difference is ads: Concrete Estimator at none against Construction Calculator A1's shown. Construction Calculator A1's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Construction Calculator A1 sells 6 in-app purchases, starting at $2.99 per month and Concrete Estimator sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Construction Calculator A1 ships an update every 4 weeks, Concrete Estimator every 6 weeks. The most recent releases landed on November 11, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Construction Calculator A1 versus Concrete Estimator: the parameters behind the verdict, then further details
ParameterConstruction Calculator A1Concrete Estimator
PriceFreeFree
Rating4.7 (29 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings29 — better—
Update frequencyEvery 4 weeks — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size182 MB7 MB
Age rating4+4+
DeveloperBinary And Bricks Pvt LtdManh Nguyen

In-app purchases

6 purchases

Construction Calculator A1

Subscriptions2
  • Pro access monthly subscription$2.991 Month
  • Pro access yearly subscription7 Days trial$24.991 Year
One-time4
  • 100 AI Credits$0.99
  • 500 AI credits$3.99
  • 500 AI credits$9.99
Show 1 more
  • Lifetime Access$39.99
2 purchases

Concrete Estimator

Subscriptions1
  • Weekly Pro$1.997 Days
One-time1
  • Lifetime Pro$19.99

Questions

Is Construction Calculator A1 free?
Construction Calculator A1 is free to download, with in-app purchases available.
Is Concrete Estimator free?
Concrete Estimator is free to download, with in-app purchases available.
Do Construction Calculator A1 or Concrete Estimator have ads?
Construction Calculator A1 shows ads; Concrete Estimator does not.
Which is updated more often, Construction Calculator A1 or Concrete Estimator?
Construction Calculator A1 ships an update every 4 weeks, and Concrete Estimator every 6 weeks. Most recently, Construction Calculator A1 was updated on November 11, 2026 and Concrete Estimator on October 31, 2026.

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