Comparison

SitePlan vs Construction Calculator A1

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

Head to head
About

SitePlan

This app digitizes construction plans and satellite maps for infrastructure projects. It allows teams to navigate plans with GPS, georeference photos, and perform centimeter-accurate measurements for as-built documentation and collaboration.

Highlights
  • GPS navigation on construction plans
  • Satellite map with georeferenced photos
  • Centimeter-accurate measurement
  • As-built documentation
  • Real-time team collaboration
  • Digital field measurements
Features
Read full description

Digital Geodocumentation and Surveying for the construction, planning and maintenance of infrastructure projects. Built for project teams: GPS navigation in construction plans and satellite map with georeferenced photos, centimeter-accurate measurement, as-built documentation and collaboration. SitePlan enables project teams to navigate PDF plans and a satellite map with their phone GPS. The plans are simply converted into digital GPS maps. Photos taken are also automatically located with their geoposition on the plans and on the map. In addition, each project member can easily connect to GNSS smart antennas, which enables positioning to the centimeter. This makes staking out, centimeter-accurate as-built documentation and digital field measurements a breeze. All data such as plans and photos are available to the entire project team in real time. This enables you to: - See your position on the construction plan and on the satellite map for better orientation - Easily localize plan objects such as lines, e.g. to avoid line damage - Immediately locate construction site photos automatically with GPS - Manage all construction plans digitally - Create conclusive photo reports including location information with just a few clicks Our customers appreciate our app primarily because of: - the simple localization of plan objects (e.g. lines) and the avoidance of line damage - the simple documentation of the construction progress with GPS photos - the much better orientation on the construction site through GPS - the elimination of time-consuming measuring work using tapes and strings - the elimination of time-consuming field measurements using sheets and a wheel - Centimeter-accurate documentation of construction work and local conditions such as lines and pipes

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.

Screenshots

SitePlan4 screens
Construction Calculator A14 screens

Verdict

The call

The clearest difference is rating: Construction Calculator A1 at 4.8 against SitePlan's 1.0. Construction Calculator A1 also leads on ratings volume (26 vs 1) and device support (4 vs 2). SitePlan's advantage is ads (none vs shown) and review sentiment (86% vs 67%). 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Construction Calculator A1 holds the better App Store score, 4.8 against 1.0. 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 complicate that: 86% of SitePlan's written reviews are positive against 67% of Construction Calculator A1's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

SitePlan ships an update fortnightly, Construction Calculator A1 every 4 weeks. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

Scorecard7 real differences · 3 level
SitePlan versus Construction Calculator A1: the parameters behind the verdict, then further details
ParameterSitePlanConstruction Calculator A1
PriceFreeFree
Rating1.0 (1 ratings)4.8 (26 ratings) — better
Positive reviews85.7% of reviews — better66.7% of reviews
Number of ratings126 — better
Update frequencyFortnightly — betterEvery 4 weeks
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS18.315.0 — better
Further details — not scored
Size155 MB161 MB
Age rating4+4+
DeveloperSitePlan GmbHBinary And Bricks Pvt Ltd

Customer experience

SitePlan

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

Construction Calculator A1

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

In-app purchases

None

SitePlan

No in-app purchases

None

Construction Calculator A1

No in-app purchases

Questions

Is SitePlan free?
SitePlan is free to download, with no in-app purchases.
Is Construction Calculator A1 free?
Construction Calculator A1 is free to download, with no in-app purchases.
Which has better reviews, SitePlan or Construction Calculator A1?
Construction Calculator A1 is rated higher. SitePlan averages 1.0 out of 5 from 1 ratings, while Construction Calculator A1 averages 4.8 from 26 ratings.
Do SitePlan or Construction Calculator A1 have ads?
Construction Calculator A1 shows ads; SitePlan does not.
Which is updated more often, SitePlan or Construction Calculator A1?
SitePlan ships an update fortnightly, and Construction Calculator A1 every 4 weeks. Most recently, SitePlan was updated on October 8, 2026 and Construction Calculator A1 on October 15, 2026.

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