Multipub is a robust system that enables you to sell your products or content to individuals, institutions, corporations, consortia, members, subscribers and registered users. Our platform handles time- or issue-based subscriptions, print and online products; paid and free products, manages site licenses and groups; calculates royalties, currencies, and taxes; simplifies events and inventory; integrates with shopping carts, paywalls, email systems, and CMS systems. We gather engagement data to give a 360 degree view of your customers. It is available as either a cloud-based or on-premise solution.