Comparison

Construction Calculator A1 vs Reedio

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

Reedio

This app allows users to read, annotate, edit, and organize PDF documents. It offers tools for highlighting, drawing, adding text, and managing pages. Advanced features include redaction, OCR, and measurement capabilities for professional document handling.

Highlights
  • PDF viewing and annotation
  • Insert images and text boxes
  • Redact sensitive information
  • Organize and reorder pages
  • Fill and sign forms
  • Scan documents with OCR
  • Measure distances and areas
Features
Read full description

Reedio is a powerful PDF reader and editor designed for professionals who need to work with documents efficiently. READ & ANNOTATE Highlight, underline, strikeout, draw freehand, add shapes, arrows, lines, and sticky notes. Mark up contracts, research papers, and reports with precision. EDIT Insert images, add hyperlinks, and place text boxes. Redact sensitive information permanently. Flatten annotations to preserve your markup when sharing. ORGANIZE Insert, delete, rotate, extract, and reorder pages. Append entire documents. Assemble the exact PDF you need. FILL & SIGN Add signatures, dates, checkmarks, stamps, and images directly to forms and agreements. SCAN & OCR Convert scanned documents into searchable, selectable text. MEASURE Calculate distances and areas on architectural drawings, floor plans, and technical documents FREE FEATURES: • PDF viewing • All annotation tools • Form filling • Signatures PRO FEATURES: • Edit (images, links, text boxes) • Redact & Flatten • OCR • Page organization • Measure • Priority support Terms of Use: https://reedio.io/terms Privacy Policy: https://reedio.io/privacy

Screenshots

Construction Calculator A14 screens
Reedio4 screens

Verdict

The call

The clearest difference is in-app purchases: Construction Calculator A1 at none against Reedio's 2. Construction Calculator A1 also leads on ratings volume (29 vs 1) and iOS requirement (15.0 vs 17.0). Reedio's advantage is ads (none vs shown) and review sentiment (100% vs 67%). On price 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. Reedio sells 2 in-app purchases, starting at $2.99 per month. Construction Calculator A1 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Reedio holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Construction Calculator A1 has 29 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 Reedio's.

UpkeepUpdate frequency

Construction Calculator A1 ships an update every 4 weeks, Reedio every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard8 real differences · 2 level
Construction Calculator A1 versus Reedio: the parameters behind the verdict, then further details
ParameterConstruction Calculator A1Reedio
PriceFreeFree
Rating4.7 (29 ratings)5.0 (1 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings29 — better1
Update frequencyEvery 4 weeksEvery 2 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFreemium
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Mac
Requires iOS15.0 — better17.0
Further details — not scored
Size161 MB12 MB
Age rating4+4+
DeveloperBinary And Bricks Pvt LtdEugene Ohu

Customer experience

Construction Calculator A1

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

Reedio

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Construction Calculator A1

No in-app purchases

2 purchases

Reedio

Subscriptions2
  • Reedio Premium7 Days trial$2.991 Month
  • Reedio Premium7 Days trial$29.991 Year

Questions

Is Construction Calculator A1 free?
Construction Calculator A1 is free to download, with no in-app purchases.
Is Reedio free?
Reedio is free to download, with in-app purchases available.
Which has better reviews, Construction Calculator A1 or Reedio?
Reedio is rated higher. Construction Calculator A1 averages 4.7 out of 5 from 29 ratings, while Reedio averages 5.0 from 1 ratings.
Do Construction Calculator A1 or Reedio have ads?
Construction Calculator A1 shows ads; Reedio does not.
Which is updated more often, Construction Calculator A1 or Reedio?
Construction Calculator A1 ships an update every 4 weeks, and Reedio every 2 weeks. Most recently, Construction Calculator A1 was updated on October 25, 2026 and Reedio on October 24, 2026.

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