Roam is a “note-taking tool for networked cognition” that makes it easy to link your ideas together. Just like Obsidian, you can create interlinked notes. Each note has a connection to other notes, but it does not live within a notebook or a separate piece of paper. Everything is interchangeable, not because it’s all in the same folder or hierarchy, but because of the relationships between the notes. Despite being a great app, it’s only web-based and it can’t export in formats like docs or pdf, to name a few. Still, it creates a huge graph that has nodes connected in a vast structure where you can get an overview of all of your pages and how they’re connected by looking at this graph and not many applications offer this feature.