Comparison

Payload Pro V vs Construction Calculator A1 Pro

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

Head to head
About

Payload Pro V

Features
Read full description

Our mobile application provides volume calculations without the need for a dedicated system operator by allowing drivers to initiate their own scans on the go with their mobile phone or tablet without having to physically touch their Payload Pro PC/Laptop. The app will provide real-time load volumes for trucks in-motion to the driver and storing the data on your Payload Pro V PC/Laptop. If you do not yet own Payload Pro V from Walz Scale check out how our innovative technology can start working for you today @ https://www.walzscale.com/load-scanner-details

About

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.

Highlights
  • Concrete quantity estimation
  • Rebar bending schedule (BBS)
  • Feet-inches calculator
  • Area and volume calculations
  • Bill of Quantities (BOQ) export
  • Project organization and sharing
Features
Read full description

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.

Screenshots

Payload Pro V4 screens
Construction Calculator A1 Pro4 screens

Verdict

The call

The clearest difference is price: Payload Pro V at Free against Construction Calculator A1 Pro's $39.99. Construction Calculator A1 Pro's advantage is update cadence (monthly vs every 11 months). On ads, in-app purchases, device support and iOS requirement 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

Payload Pro V 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.

UpkeepUpdate frequency

Payload Pro V ships an update every 11 months, Construction Calculator A1 Pro monthly. The most recent releases landed on October 4, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 8 level
Payload Pro V versus Construction Calculator A1 Pro: the parameters behind the verdict, then further details
ParameterPayload Pro VConstruction Calculator A1 Pro
PriceFree — better$39.99
Rating—4.1 (8 ratings) — better
Positive reviews—76.9% of reviews
Number of ratings—8 — better
Update frequencyEvery 11 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.115.0 — better
Further details — not scored
Size25 MB126 MB
Age rating4+4+
DeveloperWalz ScaleBinary And Bricks Pvt Ltd

In-app purchases

None

Payload Pro V

No in-app purchases

None

Construction Calculator A1 Pro

No in-app purchases

Questions

Is Payload Pro V free?
Payload Pro V is free to download, with no in-app purchases.
Is Construction Calculator A1 Pro free?
Construction Calculator A1 Pro costs $39.99, with no in-app purchases.
Do Payload Pro V or Construction Calculator A1 Pro have ads?
Neither Payload Pro V nor Construction Calculator A1 Pro shows ads.
Which is updated more often, Payload Pro V or Construction Calculator A1 Pro?
Payload Pro V ships an update every 11 months, and Construction Calculator A1 Pro monthly. Most recently, Payload Pro V was updated on October 4, 2026 and Construction Calculator A1 Pro on October 27, 2026.

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