Comparing YiNote and Glasp for notes on YouTube videos. YiNote is a simple, open-source extension for timestamped notes, and Glasp adds social highlighting and AI summaries. Here’s which is better, and where MensorAI fits if you save videos to write from.
Last reviewed: October 2026. The MensorAI team wrote this comparison. We try to be fair and accurate, and we’d encourage you to try both tools.
MensorAI started as a YouTube note-taking tool for learners. Now it saves articles, passages and YouTube moments as you go, and when you sit down to write, you ask across all of them. Every answer links back to the passage it came from.
| Feature | YiNote | Glasp | MensorAI |
|---|---|---|---|
| Chrome extension for YouTube | |||
| Timestamped notes | |||
| AI video summaries | |||
| AI Q&A about video content | |||
| Social knowledge sharing | |||
| Cloud sync | |||
| Actively maintained | |||
| Free to use | Saving is free |
YiNote is simpler for timestamped notes, but it’s no longer maintained and keeps notes on one device. Glasp is actively developed and adds AI summaries and social sharing. MensorAI is closer to YiNote on notes: you save the moment with your own note and the captions around it. It adds a synced library of articles and videos you can ask across when you write, with no summaries and no social feed.
MensorAI is for writers and creators who research newsletters, articles and scripts from what they read and watch. It doesn’t write the piece for you, and it has no summaries, flashcards or spaced repetition.
YiNote is simpler for timestamped notes, but it’s no longer maintained and keeps notes on one device. Glasp is actively developed and adds AI summaries and social sharing. MensorAI is closer to YiNote on notes: you save the moment with your own note and the captions around it. It adds a synced library of articles and videos you can ask across when you write, with no summaries and no social feed.
It depends on what the notes are for. If you write newsletters, articles or scripts, MensorAI saves the YouTube moment you’re watching with the captions around it, plus articles and passages, from a browser extension. You ask across everything you saved, and every claim links to the passage it came from. It has no summaries, flashcards or spaced repetition, and it doesn’t write the piece for you.
Saving sources is free. Asking and finding videos on YouTube need an active trial or a paid plan. You get a 7-day free trial of Pro features with a limited AI allowance. No credit card required. After that, plans are $9, $19 or $22 a month, and they differ only in how many AI requests you get per day.