Construction calculator, quotes & invoices — from measurement to payment in one app.

BuildExact is the all-in-one app for builders, contractors, tradesmen and DIY'ers. Calculate materials on site, send a professional PDF quote via WhatsApp, turn it into an invoice in one tap and get paid faster.

WHY BUILDERS CHOOSE BUILDEXACT
• 25 construction calculators with a full materials list — not just one number
• Measurement → quote → invoice in minutes, no re-typing
• Save every calculation to a project
• Free spirit level, ruler and unit converter built in
• Works offline, no account needed
• PRO is a one-time purchase — no subscription, ever

25 TRADE CALCULATORS
• Fence — posts, panels, end cuts, gates, L & U corners
• Tiles — patterns, grout, adhesive, spare box, edge trim
• Paving — patterns, sub-base, bedding, joint sand, edging
• Concrete — floor, foundation, driveway, rebar, formwork
• Round column & concrete pipe — volume and bags
• Bricks — lintels, mortar, cavity ties
• Plaster — bags per wall or ceiling
• Paint — primer, brush vs spray, can sizes
• Drywall — ceiling, wall or partition framing
• Insulation — stacked layers, live R-value, vapour barrier
• Roof — tiles, bitumen, EPDM or metal; battens, ridge
• Stairs — straight, L or U; stringers, risers, handrail
• Wood — boards or beams, screws, stain
• Sheet material — plywood, OSB, MDF incl. waste
• Flooring — carpet, vinyl and lino from the roll
• Excavation — dig volume, bulking, skips and tonnes
• Steel weight — rebar and steel plate in kg
• Tank capacity — round or rectangular, in litres
• Drilling & sawing — core holes and cuts, reinforced +40%
• Plus Area, Volume, Walls, Linear metres, Skirting and Cost
Area and Volume are free. Try every PRO calculator 3 times for free.

FREE TOOLS
• Spirit level — bubble level and edge level with calibration
• On-screen ruler — cm or inch, calibrate with a bank card
• Unit converter — length, area, volume, weight and slope (°, %, 1:x)
• Search bar to find any calculator in seconds

PROJECTS
• Keep measurements, material lists and results per job
• Save the result of any calculator to a project in one tap

QUOTES & INVOICES (PRO)
• Branded quote and invoice PDFs with your logo, VAT and signature
• 5 PDF styles: Classic, Graphite, Burgundy, Teal and Orange
• Quote → invoice in one tap — lines, client and VAT carry over
• Send via WhatsApp with a ready-made message
• Automatic numbering and live PDF preview
• Track sent, paid and overdue; payment reminder PDF in one tap

MY DAY DASHBOARD
• This week's earnings and trend at a glance
• Overdue invoices and unanswered quotes
• A daily trade tip

CLIENT MANAGER (PRO)
• Call, email, WhatsApp or navigate in one tap
• Import from your phone contacts
• Revenue per client

RECURRING INVOICES (PRO)
• Templates for maintenance contracts, weekly to yearly
• Reminder when the next one is due

PRICE BOOK (PRO)
• Save materials and labour with cost and sell price
• Live margin per line — never shown on the customer PDF

PRO & DIY MODES
Full business suite for pros, or a simple calculator and shopping list mode for DIY.

SHARING
Share results and material lists as neat images for WhatsApp or Stories.

PRO — ONE-TIME UNLOCK
All calculators, unlimited projects, PDF quotes and invoices, PDF styles, Quote → Invoice, WhatsApp sending, recurring invoices, client manager, price book, trade templates and share cards. One-time purchase — no subscription. Secure payment via Google Play.

PRIVACY-FIRST
No account needed. Your data stays on your phone.

LANGUAGES
English and Dutch (Nederlands).

Estimates only — always verify on site and follow local regulations.