DueDrop is a tool designed to help businesses manage overdue invoices by automating follow-up emails. It integrates with accounting software like QuickBooks, Xero, FreshBooks, and Wave, as well as email providers such as Gmail, Outlook, Yahoo, and Zoho Mail. The tool drafts reminders that match your tone, sends them from your actual email address, and pauses the cadence if a client replies. It aims to solve the problem of unpaid invoices slipping through the cracks, awkward follow-ups, and cash flow issues.