Comparison

Perfect Structure vs Construction Expert A1 PRO

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

Head to head
About

Perfect Structure

Design and optimize reinforced concrete columns and beams with support for multiple international design codes and languages. Generate reports in PDF, CSV, and DXF formats, and share them with colleagues. Offers a user-friendly interface for quick and flexible structural analysis.

Highlights
  • Reinforced concrete column and beam design
  • Support for 5 international design codes
  • Multilingual support (8 languages)
  • Output in PDF, CSV, and DXF formats
  • Modern and user-friendly interface
  • Design checks and optimal reinforcement calculation
Features
Read full description

Design and optimize reinforced concrete columns and beams easily with this App. . Language support for English, German, French, Italian, Spanish, Portuguese, Russian and Turkish. Supported design codes include ACI 318, Eurocode 2, BS 8110, SP 63.13330 and TS 500. Execute your design in seconds and receive the results in PDF, CSV and DXF formats. Share your calculation report with your colleagues over the internet. Fast and flexible. Key Features: - Modern and User Friendly Design - 5 Design Codes: ACI 318, Eurocode 2, BS 8110, SP 13330 and TS 500 - 8 Languages: English, German, French, Italian, Spanish, Portuguese, Russian and Turkish - 2 Units Systems: Metric (SI) & Imperial - 3 Different File Formats for Output: PDF, CSV, DXF - Reinforced Concrete Column Section Types: Rectangular, Circular, Hallow Rectangular and Hallow Circular - Reinforced Concrete Beam Section Types: Rectangular, T-beam, I-beam, Box-beam (Hollow Core) - Design of both singly and doubly reinforced beams - Draw interaction diagrams for columns - Checks given reinforcement against given loads and section parameters OR calculates optimal reinforcement amount against given loads - Calculates and checks both flexural reinforcement and shear reinforcement We hope you will enjoy using it and highly appreciate your valuable feedback. Perfect Structure is the ultimate tool for engineers to design and check the load bearing capacity of reinforced concrete members. Test your structure on the go! With its intuitive and contemporary interface, Perfect Structure brings the best of UX to your mobile phones and tablets. Execute your design and receive the results in PDF, CSV and DXF formats. Share your calculation report with your colleagues over the internet. Fast and flexible, Perfect Structure is the everyday tool for the perfect engineer who wants to have the mobility of a smartphone or a tablet without a compromise. Just launch your Perfect Structure app, use the buttons on the main screen for a column or a beam, select the section type, enter the dimension and load data, assign steel and concrete grades and leave the rest to your app by hitting the “Calculate” button. The results will be ready in moments with a clear and concise results screen. Then, select the PDF, CSV and DXF output options if you’d like to send the results to others, save the report in your project folder or inspect your column or beam layout in a CAD software. Use the settings page for a variety of options from user feedback to design code selection. See how your design complies with the design codes by getting the design check results according to the relevant code. Try and test different reinforcement bar arrangements and member dimensions to get to the optimal configuration. Phenomenally easy to use and flexible, Perfect Structure will get you to the result in a matter of seconds with a top-notch user experience. Tags: Reinforced Concrete Column Design, Reinforced Concrete Beam design, Reinforced Concrete, Structural Design, Structural Optimization, design of reinforced concrete members, PDF output, shear design, moment design, high strength concrete, high strength steel, reinforcement steel, column interaction diagram.

About

Construction Expert A1 PRO

This app is a comprehensive construction calculator designed for professionals. It offers advanced calculations for framing, stair layout, trade-specific needs, and material estimation, replacing the need for expensive hardware calculators.

Highlights
  • Feet-inch-fraction math
  • Right angle and roof framing
  • Stair layout calculations
  • Trade-specific calculators (Electrical, Plumbing, HVAC)
  • Area and volume calculations for 57 shapes
  • Material estimation tools
  • Project management and export options
Features
Read full description

Replace your $100+ hardware calculator with a smarter one. Construction Expert A1 Pro puts 150+ professional construction calculators in your pocket — feet-inch-fraction math, roofing, rafters, stairs, framing, concrete, material take-offs and more. Works fully offline. Built for general contractors, framers, carpenters, builders, estimators, electricians, plumbers, HVAC pros and serious DIY builders. WHY CONTRACTORS SWITCH - Enter 12' 7-3/16" the way you read it on the tape — no decimal conversion - Live drawings highlight each dimension as you enter it, so you know what every number means - One consistent keypad across every calculator, with a Next key that guides you through each form - Save calculations by project, attach photos, export branded PDF reports for your bid - No signal needed — works on the roof, in the basement or at the back of the lot PROFESSIONAL CONSTRUCTION CALCULATOR - Full feet, inches & fraction math, 1/16 to 1/64 with automatic simplification - Feet, inches, yards, meters, centimeters & millimeters - Percentage, square, cube, square root & reciprocal - Degrees-minutes-seconds and trigonometry (sin, cos, tan) - Expression mode with 12 construction formula templates - Running tape with save, share & print - 3 memory registers plus cumulative memory with count & average ROOFING & RAFTER CALCULATORS - Pitch, rise, run & diagonal — solve right triangles instantly - Common rafter length with plumb and level cut angles - Hip, valley & jack rafters with cheek cuts and on-center increments - Irregular and dual-pitch roofs - Rake wall stud lengths, ascending or descending - Roof area, squares, bundles & 4x8 sheet count - Interactive rafter diagrams STAIR & STRINGER CALCULATOR - Total rise to risers, treads & total run - Riser adjustment - Stringer length and angle, open or closed stringers - Interactive stair diagram with labeled dimensions TRADE CALCULATORS - Electrical: wire sizing (NEC), voltage drop, conduit fill, box fill & service sizing - Plumbing: pipe sizing, DFU, water heater, fitting offsets & drain slope - HVAC: BTU load, duct sizing, CFM & refrigerant charge - Landscaping: mulch, gravel, sod, irrigation, retaining walls & pavers MATERIAL ESTIMATION & TAKE-OFFS - Concrete volume for slabs, footings & columns, plus bag counts and rebar - Board feet, stud spacing & stud counts - Roofing squares, bundles, felt & ridge vent - Drywall, siding, flooring & insulation - Fence, deck, baluster & spindle spacing 57+ AREA & VOLUME SHAPES - Rectangles to L-shaped rooms, gable walls, pipes & toruses - Concrete steps, retaining walls & trenches - Perimeter, area, surface area & volume with labeled interactive diagrams 50+ CONSTRUCTION UNIT CONVERTERS - Length, area, volume, weight, temperature & pressure - Concrete bags, rebar, CMU blocks, board feet & aggregates - Lumber, drywall, roofing, siding, flooring & insulation - Wire gauge, conduit & breakers; PVC, copper & PEX pipe; HVAC tonnage PROJECTS, NOTES & EXPORT - Organize calculations by project and folder, with rich-text notes and photos - Favorites and searchable history - Professional PDF reports with your company branding - 7 PDF generators: rafters, stairs, fences, balusters, miters, materials & estimates - CSV, PNG & plain-text export MADE TO FIT YOUR WORK - Imperial or metric default units; fraction resolution from 1/2 to 1/64 - Dark, light or system theme; home screen widgets; haptic feedback - English, Spanish, French, German & Arabic PRICING Choose a monthly or yearly subscription, or a one-time Lifetime purchase with no recurring charges. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Settings > Apple ID > Subscriptions. Privacy Policy: https://www.binaryandbricks.com/app/privacypolicy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Perfect Structure4 screens
Construction Expert A1 PRO4 screens

Verdict

The call

The clearest difference is ads: Construction Expert A1 PRO at none against Perfect Structure's shown. Construction Expert A1 PRO also leads on ratings volume (6 vs 1). Perfect Structure's advantage is update cadence (every 2 days vs fortnightly). On price, rating, in-app purchases and monetization model 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. Perfect Structure sells 1 one-off in-app purchase and Construction Expert A1 PRO sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Perfect Structure holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Construction Expert A1 PRO has 6 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Perfect Structure ships an update every 2 days, Construction Expert A1 PRO fortnightly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Perfect Structure versus Construction Expert A1 PRO: the parameters behind the verdict, then further details
ParameterPerfect StructureConstruction Expert A1 PRO
PriceFreeFree
Rating5.0 (1 ratings) — better4.8 (6 ratings)
Positive reviews—100.0% of reviews
Number of ratings16 — better
Update frequencyEvery 2 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.015.0
Further details — not scored
Size32 MB82 MB
Age rating4+4+
DeveloperGokhan Behcet SahinBinary And Bricks Pvt Ltd

Customer experience

Perfect Structure

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Construction Expert A1 PRO

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Perfect Structure

One-time1
  • Perfect Structure Pro$8.99
3 purchases

Construction Expert A1 PRO

Subscriptions2
  • Construction Expert Monthly Sub$2.991 Month
  • Construction Expert Yearly7 Days trial$24.991 Year
One-time1
  • Construction Expert Lifetime Access$39.99

Questions

Is Perfect Structure free?
Perfect Structure is free to download, with in-app purchases available.
Is Construction Expert A1 PRO free?
Construction Expert A1 PRO is free to download, with in-app purchases available.
Which has better reviews, Perfect Structure or Construction Expert A1 PRO?
Perfect Structure is rated higher. Perfect Structure averages 5.0 out of 5 from 1 ratings, while Construction Expert A1 PRO averages 4.8 from 6 ratings.
Do Perfect Structure or Construction Expert A1 PRO have ads?
Perfect Structure shows ads; Construction Expert A1 PRO does not.
Which is updated more often, Perfect Structure or Construction Expert A1 PRO?
Perfect Structure ships an update every 2 days, and Construction Expert A1 PRO fortnightly. Most recently, Perfect Structure was updated on November 3, 2026 and Construction Expert A1 PRO on November 5, 2026.

Other comparisons