Invoicycle is a browser-based invoicing and billing application for freelancers, agencies, SaaS teams, and small businesses. Users can create one-time and recurring invoices with line items, tax details, notes, payment links, and downloadable PDFs; manage client records; choose weekly, monthly, quarterly, or annual billing schedules; and monitor invoice status, overdue balances, and payment activity. Passwordless client portals let customers view invoices, access payment history, and download PDFs. The product includes invoice templates, multi-currency display, automated reminders, payment links, and AI-assisted tools for drafting line items, reminder text, and billing summaries. It supports PayPal payments and offers a free plan alongside an annual Pro plan with expanded invoice management features.