Most contractors track job costs in spreadsheets, receipts in a shoebox, or just keep numbers in their head. Then they're surprised when the "profitable" job barely broke even. JobCost fixes that. Create a job, log costs from your phone as they happen, and watch your profit margin update in real-time. ✓ Track materials, labor, subcontractors ✓ See margins update instantly ✓ Works on your phone from the job site ✓ Free tier with 3 jobs included Built for contractors doing 5-50 jobs per year.