RemNote is the tool that caught on among knowledge workers and students who wanted Roam Research's linked thinking model combined with spaced repetition. It solves a real problem: the gap between where you take notes and where you review them. In most workflows, notes and flashcards live in separate systems and never really talk to each other. RemNote collapses that gap.
Gridually does not try to replace your note-taking system. It focuses entirely on the retention end of the pipeline and adds spatial encoding to active recall. This comparison is partly about workflow philosophy and partly about memory mechanics.
RemNote's key strength is seamless integration between note-taking and flashcard generation. You write a note in its rem format and can instantly convert it into a flashcard without leaving your document. For students who take notes in lectures and want to convert them to review material immediately, this integration removes friction that costs real time in a separated workflow. Gridually does not offer this integration - it sits at the review end of the pipeline rather than the capture end. If your pain point is bridging notes and cards, RemNote addresses it directly.
RemNote uses spaced repetition on generated flashcards, with the knowledge hierarchy providing structural context for each card. The hierarchy is valuable: knowing that a fact belongs in the section on 'mitochondria' within 'cell biology' gives it organizational context. But this context is textual and hierarchical rather than visual and spatial. Gridually's grid positions facts in a two-dimensional space where proximity implies relationship. This visual map becomes internalized over study sessions in a way that a nested outline does not. For retention of large fact sets, the spatial grid may produce stronger recall cues than hierarchical placement alone.
RemNote is the stronger choice for learners who want a unified note-taking and review system and are willing to invest in learning it. Gridually is the stronger choice for the review phase specifically, especially for learners who have notes in an existing system and want a more spatially organized recall experience. Gridually's spatial encoding is based on memory research from the University of Chicago, University of Bonn, and Macquarie University.
RemNote is the better choice if you want your lecture notes and study cards in one place and are willing to invest in learning its system. Gridually is better for the review phase specifically, particularly for subjects where spatial relationships between concepts aid recall.
Gridually does not currently offer PDF annotation. It focuses on the review and retention phase rather than the note-taking and capture phase. The two tools can be complementary: RemNote for capture and organization, Gridually for active recall practice.
RemNote has a free tier with limitations on the number of documents and some advanced features. Its paid tier is priced higher than most flashcard apps because it is a full knowledge management system. Gridually's free tier is more generous for pure review and retention work.