WinMargin is a quoting and invoicing app built for solo operators and small home-service crews. Its Profit Engine solves the price of every job from the profit margin you set, so a quote is right before it goes out — not discovered after the job is done. It ships with a 107-service price book you can edit, Good/Better/Best tiered quotes, and customer links for viewing, signing, and paying a deposit online — after their first payment, customers get their own login to a private dashboard with all their quotes and invoices. Automatic balance reminders, job photos, change orders, and crew logins with no per-user fee are built in. Customers pay the contractor's own connected Stripe account; WinMargin never touches the funds. Honest limits: no scheduling/dispatch and no QuickBooks sync yet — CSV export and full backups are built in.
