StackTools vs CoursifyYT

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

StackTools compared with CoursifyYT
Detail	StackTools	CoursifyYT
What it does	Private browser tools for everyday work	Turn any YouTube channel into a structured course with AI-powered study tools
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	IN
Pricing model	Free	Freemium
Pricing	Not given	Free: 3 courses per week, 1,000 videos each, 2 quizzes/mind maps/flashcards per day, unlimited notes/clips/screenshots/transcripts. CoursifyYT Pro: $18/month (or $40 at launch, 55% off), includes 6 courses per week, 5,000 videos per channel, 10 quizzes/mind maps/flashcards per day, 500 MB synced sto
Key features	PDF merge, split and compress Convert Word, Excel, images to PDF OCR, redact and protect PDFs Compress images (JPG, PNG, WebP, AVIF) Convert HEIC images Background removal On-device image upscale Works offline after first load No signup required	AI-powered course organization that groups videos by discipline, module and lesson from beginner to advanced Notes pinned to specific video timestamps with tags and linked ideas Multiple-choice quizzes built from video content Flashcards with spaced repetition across entire courses Mind maps showing video content as branching ideas Ask feature to get timestamped answers about video content Video transcripts with search and export capabilities Clips and screenshots with timestamps for saving key moments Course syllabus exportable as printable PDF with progress tracking Progress tracking and synced notes across devices when signed in
What makes it different	Files process in your browser with no uploads to servers No account, no credit card, no friction Works offline after first visit	Works without an account while keeping notes and progress in your browser locally No analytics, advertising or data tracking, with privacy by default Unlimited notes, transcripts and study tools on free plan Course ordering follows learning progression, not YouTube's recommendation algorithm
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)	8 no change since last check	1 no change since last check
Trust Flow (Majestic)	4	0
Citation Flow (Majestic)	14	18
Referring domains (Majestic)	4	11

4 details filled in for both companies.

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