Expensify is a cloud-based expense management software platform that serves small and medium-sized businesses globally through a self-service, subscription-based model. The platform automates the full expense lifecycle—from receipt capture and approval to reimbursement and payment—and offers complementary products including a corporate credit card, travel booking integration, and bill pay and invoicing capabilities. The company employs a capital-efficient, viral adoption model where individual employees download and use the platform free, championing it internally, while the business generates revenue from paid subscription plans billed monthly based on active members across thousands of companies worldwide.