Flowcast is a visual feedback tool for building websites and web apps. It allows web developers to get feedback from clients or their team on what they're building by making notes directly on live web pages, similar to Google Docs review mode but for websites. Notes can be viewed by all collaborators and are tied to specific elements on the page to avoid miscommunication. Email notifications, integrations with project management tools, and support for responsive sites makes it so Flowcast can fit into any workflow.