What is expex?expex is a SaaS solution for managing your bills in the cloud using the CarlyApp – our bill management web app. With the Carly, the business bill payment process is paperless, automated and secure. Carly provides you with all the tools you need to receive, approve and manage your bills from our within the expex portal. Carly saves you money too, by providing access to national contracts on items you buy to manage your office. Carly is designed for small to medium size businesses and saves you significant amounts of time and money. We think the world of Carly, and we think you will too!