Construction Expert A1 PRO

Construction Expert A1 PRO

Feet Inch Fraction Calculator

2 ratings
8 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • February 28, 2026
  • September 10, 2026

Features

Construction Expert A1 PRO video #1 for iPhone
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Construction Expert A1 PRO screenshot #8 for iPhone
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About

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.

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
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What's New in Construction Expert A1 PRO

1.1.1

September 10, 2026

ONE KEYPAD, EVERYWHERE Every calculator input now opens the same construction keypad. Feet, inches, yards, metres and fractions are always a tap away, and the iPhone number pad no longer turns up halfway through a takeoff. GUIDED ENTRY • A new Next key saves the value and moves to the next field without closing the keypad. On the last field it becomes Calculate. • The field you're entering is outlined and scrolled into view, so you always know where you are in a form. • Fields that take words keep the normal keyboard, now with Done and Next above it. LIVE DIAGRAMS On Stairs, Rafters, Fence, Baluster and Right Angle, the dimension you're entering is highlighted on the drawing and redrawn as you type — so you can see what the number means before you commit it. Where a drawing has no line for a field, it stays unmarked rather than pointing at the wrong one. On Stairs you can also tap a dimension on the drawing to jump straight to the field it comes from. FIXES • A fraction typed straight after a metric unit (for example m, 3, /, 4) showed the value but saved zero. It now saves what you entered. • Diagrams could draw incorrectly at small sizes. • On roof calculators, the dimension you were editing stayed unhighlighted when it fell outside code limits — the one you were most likely adjusting.

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Subscription plans

Construction Expert Monthly Sub

Construction Expert Monthly Subscription

$2.991 Month
How to cancel Construction Expert A1 PRO subscription ⁉️
1

In-App Purchases

$24.99

Construction Expert Lifetime Access

Get Lifetime Access

User reviews

Useful for civil engineers

As a civil engineer, I find Construction Expert A1 PRO extremely useful for day-to-day work. The range of construction calculators helps me perform quick and accurate calculations on site and during estimation. A practical app that saves time and makes routine work much easier. Highly recommended for civil engineers and construction professionals.
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Response from developer

Thank you for your support! 🙌 Great to hear the rafter calculator is delivering real value in your work. We built it for fast, accurate results on-site.

Best app

Lifetime purchase is game changer

Response from developer

Thank you for the fantastic 5-star review! We’re happy to know you find the lifetime purchase of Construction Expert A1 PRO a game changer. It’s great to hear that the one-time purchase model adds real value to your experience. We’re glad to have you with us!

Finally, No Subscription

The feet inch calculator, roof framing, and stair layout save me time every day. The ONE time payment makes this one of the best values for construction professionals. Exactly what I was looking for.

Response from developer

Glad to hear the feet-inch calculator, roof framing, and stair layout are saving you time in your daily work! That’s exactly the kind of practical value we want Construction Expert A1 PRO to deliver. Thank you for the 5-star review and for sharing what works best for you!

Finally, No Subscription

I've been looking for a professional construction app without a monthly subscription. Construction Expert A1 Pro has roof framing, stair layout, feet-inch math, material estimation, and much more. The one-time payment makes it an excellent value.

Response from developer

We’re glad you found the one-time purchase model valuable! 🙌 It’s great to know you’re looking for a professional construction solution without recurring subscription costs. Thank you for the detailed 5-star review and for highlighting the features you find useful!

Excellent Construction App for Professionals

I have tried several construction apps and Construction Expert A1 PRO is by far the most complete. It includes concrete, rebar, masonry, roofing, framing and many other calculators that save a lot of time on the job. Definitely worth the Pro version!

Response from developer

Thank you for the wonderful review! We're glad Construction Expert A1 Pro is helping you save time on the job. We work hard to provide an all-in-one toolkit for construction professionals, and your feedback motivates us to keep improving. Thank you for your support!

Developer apps

FAQ

What is Construction Expert A1 PRO?

Construction Expert A1 PRO is a professional calculator app designed for construction professionals. It offers a wide range of calculations for framing, stair layout, trade-specific needs, material estimation, and more, aiming to replace expensive hardware calculators.

What types of calculations can Construction Expert A1 PRO perform?

It supports full feet-inch-fraction math, right angle and roof framing, stair layout, and specialized calculations for electrical, plumbing, and HVAC trades. It also includes area and volume calculations for numerous shapes and material estimation tools.

Can Construction Expert A1 PRO help with material estimation?

Yes, the app includes material estimation features for board feet, stud spacing, concrete volume, roofing materials, drywall, and fence materials, helping users accurately plan and budget for projects.

Does Construction Expert A1 PRO offer project management features?

Yes, it allows users to organize calculations by project, add rich text notes, attach photos, and access calculation history with search and filter options, aiding in project organization.

What export options are available in Construction Expert A1 PRO?

You can export calculations as professional PDF reports with company branding, CSV spreadsheets, PNG images, and plain text. It also includes specific PDF generators for various construction elements.

What languages does Construction Expert A1 PRO support?

Construction Expert A1 PRO supports 5 languages: English, Spanish, French, German, and Arabic, making it accessible to a global user base.

How often is Construction Expert A1 PRO updated?

The app was last updated on April 27, 2026, indicating recent development and support. The latest version is 1.0.6.

What is the pricing for Construction Expert A1 PRO?

Construction Expert A1 PRO is free to download and use, with optional in-app purchases. Subscription plans include 'Construction Expert Monthly Sub' for $2.99/month and 'Construction Expert Yearly' for $14.99/year, both offering a 7-day free trial.