How do their growth rates compare?

Glasp has a month-over-month growth rate of -14.1%; SummifyYT (Summarize YouTube Comments) has —.

How does pricing compare?

Glasp: Freemium. Freemium. A free tier covers the core highlighting, saving and sharing features with limited AI usage; paid plans add higher AI limits and additional capacity. Check glasp.co for current tier pricing, as it is not published in our listing data. SummifyYT (Summarize YouTube Comments): Free. Completely free. The extension itself costs nothing and has no in-app purchases; it reuses your existing ChatGPT account, so any costs are whatever your ChatGPT plan already covers.

What are alternatives to Glasp and SummifyYT (Summarize YouTube Comments)?

Other tools in related categories include Notion, Perplexity, SciSpace, Sider, Merlin AI.

Glasp vs SummifyYT (Summarize YouTube Comments) — Traffic (889.56K vs 0), Pricing & Verdict

Open AI Tools

Glasp vs SummifyYT (Summarize YouTube Comments) — Traffic (889.56K vs 0), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Glasp	SummifyYT (Summarize YouTube Comments)
Official Domain	glasp.co	chrome.google.com
Pricing Model	Freemium	Free
Monthly Visits	889.56K (889,564)	0 (0)
MoM Traffic Delta	-146.38K (-14.1%)	0 (—)
Primary Market & Share	🇺🇸 United States (15.5%)	🌐 Global (—)
Direct Visits / mo	400.6K	0
User Rating	4.2	1.9
Supported Platforms	Website	Browser Extension

Glasp

Highlight the web, learn in public, and build your AI clone

Web and YouTube highlighting

Mark up passages on any website or lines in a YouTube transcript from a browser extension, then keep them in one searchable library.

Social learning feed

Highlights are shared publicly by default, so you can follow other users, react to their picks and discover sources through people with similar interests.

AI summarization

Generate summaries of long articles, PDFs and YouTube videos to judge relevance fast and to digest what you have already saved.

Your own AI clone

Trained on your accumulated highlights and notes, the AI clone answers in the shape of your reading history and areas of interest.

Strengths & Pros

+Turns throwaway highlighting into a genuinely reusable, searchable library
+The social feed surfaces sources through people rather than an opaque algorithm
+AI summarization and the AI clone are built on your own saved material, not generic content
+Works across web pages, YouTube, PDFs and Kindle imports in one place