Comparison

Construction Calculator A1 vs DigitalEdgeDC EHS

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 app provides specialized calculators for construction professionals, including concrete, rebar, and area/volume calculations. It offers material quantity estimation, unit conversion, and professional features like BOQ export and project organization. Designed for contractors, builders, and engineers on job sites worldwide.

Highlights
  • Concrete material quantity calculation
  • Rebar bending schedule and weight calculation
  • Feet-inch arithmetic without decimal conversion
  • Area and volume calculations for 15+ shapes
  • Construction-specific unit conversions
  • Bill of Quantities (BOQ) export to PDF/Excel
  • Save and organize calculations by project
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

DigitalEdgeDC EHS

Features
Read full description

Digital Edge DC App provides Safety Aspects - Safety observation and reporting - for better EHS outcomes. This application is designed to help users to report any kind of Incident, Near-miss and Safety Observations Reports. Key Features of App: Safety observation and reporting Real-Time Tracking : -- Record and maintain the details of Incident and Near-miss, which happen in Field Area. -- Report any unsafe acts, unsafe conditions observation in Workplace Area. -- All the authorities get aware of the ongoing reports and can track Safety report’s status. Corrective and Preventive Actions Tracking : -- Allow tracking and closure of corrective and preventive measures. Instant Notifications : -- All the involved authorities get instantly notified so that they can act accordingly in a timely manner.

Screenshots

Construction Calculator A14 screens
DigitalEdgeDC EHS4 screens

Verdict

The call

The clearest difference is ads: DigitalEdgeDC EHS at none against Construction Calculator A1's shown. DigitalEdgeDC EHS also leads on iOS requirement (11.0 vs 15.0). Construction Calculator A1's advantage is update cadence (every 4 weeks vs every 3 months). On price, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Construction Calculator A1 ships an update every 4 weeks, DigitalEdgeDC EHS every 3 months. The most recent releases landed on September 30, 2026 and September 14, 2026 respectively.

Scorecard3 real differences · 7 level
Construction Calculator A1 versus DigitalEdgeDC EHS: the parameters behind the verdict, then further details
ParameterConstruction Calculator A1DigitalEdgeDC EHS
PriceFreeFree
Rating4.8 (26 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings26 — better—
Update frequencyEvery 4 weeks — betterEvery 3 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.011.0 — better
Further details — not scored
Size161 MB55 MB
Age rating4+4+
DeveloperBinary And Bricks Pvt LtdDigital Edge

In-app purchases

None

Construction Calculator A1

No in-app purchases

None

DigitalEdgeDC EHS

No in-app purchases

Questions

Is Construction Calculator A1 free?
Construction Calculator A1 is free to download, with no in-app purchases.
Is DigitalEdgeDC EHS free?
DigitalEdgeDC EHS is free to download, with no in-app purchases.
Do Construction Calculator A1 or DigitalEdgeDC EHS have ads?
Construction Calculator A1 shows ads; DigitalEdgeDC EHS does not.
Which is updated more often, Construction Calculator A1 or DigitalEdgeDC EHS?
Construction Calculator A1 ships an update every 4 weeks, and DigitalEdgeDC EHS every 3 months. Most recently, Construction Calculator A1 was updated on September 30, 2026 and DigitalEdgeDC EHS on September 14, 2026.

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