Recall is the better pick for building a self-organizing knowledge base — save and summarize articles, podcasts, YouTube and PDFs, then chat across everything with a knowledge graph and spaced repetition. HoverNotes is built for learning from video — it watches courses, lectures and tutorials with you and turns them into AI study notes automatically, capturing the on-screen code and diagrams a summary misses.
See it in action
HoverNotes sits right beside the video and turns what you watch into AI study notes — automatically, as you learn, capturing the code and diagrams a transcript misses.

Watches the video live and writes structured AI study notes as you go
Captures timestamped screenshots of on-screen code, equations & diagrams
Saves everything privately to your own Obsidian vault
The honest comparison
Both help you remember what you consume. Recall summarizes and connects everything you save into one knowledge base. HoverNotes captures screenshot-rich notes from the videos you watch — saved to your own Obsidian vault.
You learn from video — courses, lectures, coding tutorials across YouTube, Udemy, Coursera and 20+ platforms — and want AI study notes plus timestamped screenshots of on-screen code, equations and diagrams, captured live and saved privately to your own Obsidian vault.
You want a self-organizing second brain — one-click summaries of articles, podcasts, YouTube and PDFs, auto-tagging, a knowledge graph, and spaced-repetition quizzes across everything you save.
| Feature | HoverNotes | Recall |
|---|---|---|
| Watches video live and writes AI notes as you learn | Summarizes the transcript | |
| Timestamped screenshots of on-screen code, equations & diagrams | ||
| Captures the visual frames (not just a summary) | ||
| Works on any video in your browser, including local files | YouTube / articles / PDFs you save | |
| Local-first — notes stored in your Obsidian vault | Cloud knowledge base | |
| Exports notes to Obsidian (Markdown) | Markdown export | |
| One-click summaries of articles, podcasts & PDFs | ||
| Self-organizing knowledge graph & auto-tags | ||
| Chat across your whole knowledge base | ||
| Spaced-repetition quizzes | ||
| Free plan to start |
Questions
It depends on the job. For capturing notes from video, HoverNotes is purpose-built: it watches courses, lectures and tutorials with you, captures timestamped screenshots of on-screen code, equations and diagrams, and saves AI study notes to your Obsidian vault. Recall is the stronger choice for building a self-organizing knowledge base across everything you read, watch and listen to — with a knowledge graph, chat and spaced-repetition review.
Recall is an AI knowledge base: you save articles, podcasts, YouTube videos and PDFs, get one-click summaries, and everything is auto-tagged into a knowledge graph you can chat with and review via spaced repetition, stored in the cloud. HoverNotes watches the video with you in real time, captures timestamped screenshots of the code and diagrams as they appear, and writes AI study notes straight to a local Obsidian vault.
Recall summarizes a YouTube video from its transcript and audio (up to about 10 hours), so it doesn't watch alongside you or capture the visual frames — the on-screen code, equations and diagrams aren't saved as images. HoverNotes follows the video as it plays and grabs exactly those moments as timestamped screenshots, which is what makes it strong for coding tutorials and diagram-heavy lectures.
Recall has a free Lite plan (around 10 content summaries per month) and Recall Plus at about $7/month for unlimited summaries, knowledge graph and quizzes. HoverNotes is free to install, with paid plans for heavier use. Both export to Markdown — the difference is that HoverNotes stores your notes locally in your own Obsidian vault, while Recall keeps your knowledge base in the cloud.
Choose Recall if you want a second brain that summarizes and connects everything you consume — articles, podcasts, YouTube and PDFs — into one knowledge graph you can chat with and review with spaced repetition. Choose HoverNotes if you learn from video and want screenshot-rich study notes captured automatically as you watch, saved to your own vault.
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