Construction Calculator A1 Pro vs Site Task
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Construction Calculator A1 Pro
This app provides specialized calculators for construction professionals, including concrete, rebar, and area/volume calculations. It helps estimate material quantities, steel tonnage, and perform complex measurements with ease. Users can also generate Bills of Quantities and export reports for clients.
- Concrete quantity estimation
- Rebar bending schedule (BBS)
- Feet-inches calculator
- Area and volume calculations
- Bill of Quantities (BOQ) export
- Project organization and sharing
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Trusted by 1M+ contractors, builders and engineers worldwide. Construction Calculator A1 Pro is a complete civil engineering toolkit for engineers, contractors, architects, site supervisors, quantity surveyors (QS) and real estate professionals. 500+ calculators take you from material estimation and RCC design all the way to a client-ready Bill of Quantities - on your iPhone, iPad and Apple Watch. EVERYTHING UNLOCKED, NO ADS - No advertising anywhere in the app - Unlimited calculations - no daily cap - Every calculator unlocked, including Draw Shape, GPS Area and the specialist trade tools - Unlimited favourites, recents and custom formulas - Cloud sync across your devices, included - One purchase. No subscriptions, no in-app purchases. IDEAL FOR - Civil Engineers & Contractors - RCC, beam, column, footing & reinforcement - Quantity Surveyors & Estimators - Fast, accurate material take-offs - Site Supervisors & Project Managers - On-site calculations and costing - Architects & Builders - Area, volume and design measurements - DIY Home Builders & Real Estate Professionals - Land and plot area NEW - BILL OF QUANTITIES (BOQ) - Add any calculation result straight to a BOQ - Organise work by project, track total value and % priced - Professional BOQ report with your company header and signature - Export as PDF or Excel and send to clients NEW - AUTOMATIC DRAWINGS - Calculators generate a dimensioned drawing of what you entered - Brickwork, steel/BBS shapes, concrete sections, excavation, stairs and more - Drawings and a DIMENSIONS/QUANTITIES panel in every PDF report NEW - MATERIAL PRICE LIBRARY - Store your own material rates in your own currency - Rates auto-fill into cost fields across the app - Six regional presets with local materials and units NEW - APPLE WATCH APP - Converter, material weight, volume, diagonal and rebar on your wrist - Prices synced from your iPhone, with full calculation history NEW - LEARN: STUDY & QUIZ - Civil engineering articles, checklists and reference charts - Topic quizzes with instant explanations - Daily streaks, XP, stars and achievement badges QUANTITY CALCULATORS - Concrete - slab, beam, column, footing, staircase, retaining wall, culvert - Steel & BBS - reinforcement weight, cutting length, bar bending schedules - Brick, Block & Plaster - walls, bonds, arches, AAC/CLC blocks - Flooring, Tile & Plywood - Paint - litres/gallons with coats and coverage - Water Tank - rectangular, cylindrical, spherical, capsule and more - Excavation & Backfill, Anti-Termite, Shuttering, Plum Concrete - Roofing - area, pitch, rafter length, gable and flat roofs - Infrastructure - road, rail, dam, sewage, water supply - Specialist trade tools - drywall, deck stain, vinyl fence, ladder angle and length, man-hours, arch - Construction Cost Estimator with breakdown charts and client quotations AREA & VOLUME - Plot area, rectangle, square, triangle, circle, trapezoid, polygons - Cube, cone, cylinder, sphere, prism, pyramid, frustum and more - Draw Shape and GPS Area for irregular plots UNIT CONVERTER - Length, area, volume, weight, pressure, power, speed, time, fuel, angle, density - Feet-inch-fraction construction calculator with a running tape SAVE, SHARE & SYNC - Save calculations, add notes and photos, organise in folders - Export PDF and Excel reports with your company logo and signature - iCloud and Google Drive backup - Cloud sync across all your devices WHY CHOOSE CONSTRUCTION CALCULATOR A1 PRO - Metric & Imperial - switch instantly in any calculator - Works offline - calculations need no internet - 16 languages - Light and dark themes - Home Screen widgets and Quick Actions - Clean interface built for the jobsite NEED HELP OR HAVE SUGGESTIONS? We value your feedback. Contact constructioncalculatorallinone@gmail.com for support or feature requests.
Site Task
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Scheduling, assigning and executing construction tasks hasn’t been simpler ! Your construction teams will be equipped with all the information they need to perform their task of the day. They will be able to create, assign and track your construction site tasks to deliver construction projects successfully. With Site Task construction professionals can coordinate efficiently, track performance and reduce risk. It brings clarity and eliminates confusion in daily construction work and routine by showing a well-defined list of tasks with start, end dates, and deadlines. Construction sites or fields can be messy and complex. That is why Site Task is built for the field. It makes it easy for engineers, contractors and foremen to stay on top of things and optimize their work for the next few weeks. Construction timelines can be uncertain. So Site Tasks brings more predictability of work to be done across different trades. In short, Site Tasks gets the work done with less email and no paperwork. Site Task offers many features and benefits for construction companies. For example: Schedule and assign tasks and get them done - Create and assign tasks in advance - Assign tasks to multiple people - Update info about construction progress - Save time by using prefilled lists or existing info - Automatically record all activities in the diary Easily move around the construction site to execute the tasks - Quickly see all the tasks assigned to you on your smartphone - Create and assign task in seconds on the go - Check tasks that are pending approval - Receive notifications about the status of the task - Track automatically the time spent on a construction task Get a big picture of your tasks from the timeline view - Clear overview of your ongoing, completed and over-due tasks - Complete picture of who is doing what and by when - Verify conflicts, constraints and issues between tasks and immediately resolve them - Calculate the productivity rate - Export your progress reports in pdf format
Screenshots
Verdict
The clearest difference is price: Site Task at Free against Construction Calculator A1 Pro's $39.99. On update cadence, ads, 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
Site Task is free to download; Construction Calculator A1 Pro costs $39.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Construction Calculator A1 Pro ships an update monthly, Site Task every 3 weeks. Both last shipped on September 10, 2026.
| Parameter | Construction Calculator A1 Pro | Site Task |
|---|---|---|
| Price | $39.99 | Free — better |
| Rating | 4.6 (7 ratings) — better | — |
| Positive reviews | 76.9% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 124 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Binary And Bricks Pvt Ltd | Script&Go |
In-app purchases
Construction Calculator A1 Pro
No in-app purchases
Site Task
No in-app purchases
Questions
Is Construction Calculator A1 Pro free?
Is Site Task free?
Do Construction Calculator A1 Pro or Site Task have ads?
Which is updated more often, Construction Calculator A1 Pro or Site Task?
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