subtitle.im vs MarklyKit

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

subtitle.im compared with MarklyKit
Detail	subtitle.im	MarklyKit
What it does	YouTube captions, on when needed, off when they get in the way.	Browser extension for highlighting, annotating, and taking notes on any webpage
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free: $0, no sign-up needed, 10 successfully handled videos in total with no monthly reset. Pro subscription: $17.99 / year, billed annually. Pro Lifetime: $29.99 / once, pay once for ongoing maintenance and all major and minor updates.	Free plan includes unlimited highlighting and drawing with local-only storage. Pro plan costs $7.99/month with a 7-day free trial, including cloud sync, unlimited sticky notes, PDF export, AI connectors, and API access.
Key features	Automatic caption control - follow YouTube, auto-open, or auto-close Local OCR detects burned-in subtitles Handle duplicate captions with separate settings Manage different languages in captions Channel-specific caption rules (Pro) Video-specific rules (Pro) Remember confirmed caption closures (Pro) Restore captions if hidden by mistake Privacy-first local processing	Privacy masking with blur tool for sensitive data AI connectors for Claude, ChatGPT, and Grok via MCP server Local-first storage with optional cloud sync on Pro plan Keyboard shortcuts for rapid tool switching Focus mode to toggle annotation visibility Browser PDF highlighting support
What makes it different	All processing happens locally in your browser with no video frames uploaded Automatically detect burned-in subtitles and handle them separately from YouTube captions Set caption preferences at global, channel, or video level Free to try with 10 videos before upgrading No email or account required for free use	Designed specifically for academic research with citation-ready PDF exports Built-in MCP server enabling direct AI integration without copy-pasting No account required to start highlighting immediately
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	29 +8 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	15	0
Citation Flow (Majestic)	24	6
Referring domains (Majestic)	36	2

5 details filled in for both companies.

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