AddSub Construction Calculator

WHAT'S NEW - Multiply and divide measurements—calculate stud spacing, board cuts, and material runs in seconds - Unit converter—switch between feet, inches, yards, meters, centimeters, and millimeters - Contractor Tools tab with five calculators: - Area - Volume - Board feet - Square footage with adjustable waste factor - Concrete (shows cubic feet, cubic yards, AND the number of 80 lb and 60 lb bags needed) - PDF export - generate branded quote sheets you can email or text to clients - Calculation history—review your last 5 calculations - Dark mode + system theme support IMPROVEMENTS - Faster app startup - New menu on every screen for quick navigation - Clear button on every screen to reset fields instantly - Cleaner, more modern interface SUBSCRIPTION AddSub Pro ($2.99/month) unlocks multiply, divide, unit conversions, all contractor tools, PDF export, and removes ads.