Flipsnack

Flipsnack is an online flipbook maker that allows users to convert PDFs into interactive digital publications or design them from scratch. It offers a design tool (rich-text-editor), various sharing options including social media and email (social-sharing-and-embedding, email-newsletter-integration), and analytics for tracking engagement (reader-engagement-metrics). While it doesn't have a direct 'recommendation engine' like Medium, it does offer search and discovery through tags and topics. It also supports collaboration and user profiles, and has mobile apps. However, its core monetization model is not based on reader subscriptions to access premium content or writers earning revenue based on reading time, but rather on a SaaS subscription for the creation tools.