For solo GCs, remodelers, and trades
Change orders and jobsite calculators for contractors.
Capture the change in 60 seconds: photo, calculator-backed price, client signature, branded PDF. No more arguing about extras at the end of the job.
Free to try · iOS app coming soon · Founding Pro $9.99/mo
How it works
From job-site photo to signed change order in under a minute.
Calculate
Run a quick calc — concrete, drywall, lumber, etc. — for the extra work.
Add photos & notes
Snap the condition that triggered the change. Add a one-line scope.
Generate the PDF
Branded change-order PDF with your company name and total.
Send for approval
Client opens the link, signs on their phone, you get notified. No printer.
Free calculators
Seven calculators built for the field.
No login. No spreadsheet. Each result has an "Add to Change Order" button so the price flows straight into your bid.
Concrete
Slabs, footings, columns. Cubic yards + bag count.
Lumber
Board feet, stud counts for wall lengths.
Drywall
Sheets + screws + mud per room.
Paint
Gallons by surface area & coats.
Roofing
Squares + underlayment + nails.
Decking
Boards, joists, posts, fasteners.
Flooring
Square footage + waste factor.
Get paid for the extra work, not just the original bid.
Free includes one project + one PDF/month + all calculators. Founding Pro ($9.99/mo or $79.99/yr, 7-day trial) unlocks the full bid-to-paid workflow.
- ✓ Unlimited change orders & PDFs
- ✓ Branded PDFs (your logo + company name)
- ✓ Client signature + approval links
- ✓ Project history across devices
- ✓ Photos / attachments
- ✓ Markup, waste, overhead presets