Comparison

Construction Calculator A1 vs Triangle Angles Calculator

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

Triangle Angles Calculator

Easily calculate unknown sides, angles, and other parameters for various triangle types. Features interactive visualizations and works offline, making it ideal for students and professionals needing quick, accurate geometric solutions.

Highlights
  • Calculate unknown triangle parameters from 2-3 known values
  • Interactive visualization of triangle types
  • Real-time calculations with intuitive interface
  • Offline functionality
  • Supports metric and imperial units
  • Calculates sides, angles, area, perimeter, medians, and circles
Features
Read full description

Triangle Calculator - Comprehensive Geometry Tool With this intuitive application, you can easily perform calculations for various types of triangles: * Right triangle (with 90° angle) * Scalene triangle (all sides and angles different) * Isosceles triangle (two equal sides, two equal angles) * Equilateral triangle (all sides equal, all angles 60°) Key features: - Calculate unknown parameters when you know just 2-3 values - Clear, interactive visualization of each triangle type - Simple and intuitive interface with real-time calculations - No internet connection required - works completely offline - Supports both metric and imperial units Parameters you can calculate: - All sides, heights, and angles - Perimeter and area - Medians and bisectors - Coordinates of the geometric center (centroid) - Radius and coordinates of inscribed and circumscribed circles - Projections and special components in right triangles Perfect for students, teachers, engineers, architects, designers, and anyone working with geometric calculations. Save time on complex triangle calculations and always get accurate results with proper precision. This powerful yet simple tool helps you solve triangle problems in seconds. Just input the known values and get comprehensive results with all related parameters calculated automatically. No ads, no subscriptions - just a clean, functional triangle calculator at your fingertips.

Screenshots

Construction Calculator A14 screens
Triangle Angles Calculator4 screens

Verdict

The call

The clearest difference is ads: Triangle Angles Calculator at none against Construction Calculator A1's shown. Triangle Angles Calculator also leads on review sentiment (100% vs 67%) and update cadence (every 3 days vs every 4 weeks). Construction Calculator A1's advantage is ratings volume (26 vs 1). 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.

ReceptionRating · Positive reviews · Number of ratings

Triangle Angles Calculator holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Construction Calculator A1 has 26 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 67% of Construction Calculator A1's written reviews are positive against 100% of Triangle Angles Calculator's.

UpkeepUpdate frequency

Construction Calculator A1 ships an update every 4 weeks, Triangle Angles Calculator every 3 days. The most recent releases landed on September 30, 2026 and September 26, 2026 respectively.

Scorecard7 real differences · 3 level
Construction Calculator A1 versus Triangle Angles Calculator: the parameters behind the verdict, then further details
ParameterConstruction Calculator A1Triangle Angles Calculator
PriceFreeFree
Rating4.8 (26 ratings)5.0 (1 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings26 — better1
Update frequencyEvery 4 weeksEvery 3 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size161 MB28 MB
Age rating4+4+
DeveloperBinary And Bricks Pvt LtdDmitriy Trofimov

Customer experience

Construction Calculator A1

All ratings26 ratings
Positive96.2%
Neutral0.0%
Negative3.8%
Written reviews12 reviews
Positive66.7%
Neutral8.3%
Negative25.0%

Triangle Angles Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Construction Calculator A1

No in-app purchases

None

Triangle Angles Calculator

No in-app purchases

Questions

Is Construction Calculator A1 free?
Construction Calculator A1 is free to download, with no in-app purchases.
Is Triangle Angles Calculator free?
Triangle Angles Calculator is free to download, with no in-app purchases.
Which has better reviews, Construction Calculator A1 or Triangle Angles Calculator?
Triangle Angles Calculator is rated higher. Construction Calculator A1 averages 4.8 out of 5 from 26 ratings, while Triangle Angles Calculator averages 5.0 from 1 ratings.
Do Construction Calculator A1 or Triangle Angles Calculator have ads?
Construction Calculator A1 shows ads; Triangle Angles Calculator does not.
Which is updated more often, Construction Calculator A1 or Triangle Angles Calculator?
Construction Calculator A1 ships an update every 4 weeks, and Triangle Angles Calculator every 3 days. Most recently, Construction Calculator A1 was updated on September 30, 2026 and Triangle Angles Calculator on September 26, 2026.

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