A workspace for reading articles, PDFs, videos and podcasts with AI explanations and cross-source questions
Native Mac app for screenshots and screen recordings with annotation and branding
Stage
Startup
Not given
Founded
2026
Not given
Based in
US
Not given
Pricing model
Freemium
Paid
Pricing
Free plan with 100 comprehension units/month. Pro $9/month with 300 units. Premium $19/month with 600 units. Scholar $39/month with 1,200 units. Annual billing saves 17%: Pro $90/year, Premium $190/year, Scholar $390/year. Unit packs from $10 for 200 units.
$19.99 one-time purchase for a lifetime license covering 2 Macs with free updates forever and 30-day money-back guarantee
Key features
Clean reading view for articles, PDFs, podcasts, videos and newsletters
Inline explanations for difficult passages written from surrounding context
Cross-source question answering with citations
Structural navigation showing key moments and density maps
Connected note-taking tied to source passages
Natural voice narration for listening
Notebook feature for gathering related sources with notes and questions
Discover shelf suggesting rights-cleared reading related to your library
Course builder to create lessons from saved documents
Integration with ChatGPT and browser extensions for Chrome and Firefox
Screen recording with system audio and MP4 export
Annotation tools: arrows, shapes, text, highlight and pixelated blur
Eight hand-picked gradient backgrounds with padding and rounded corners
Branding: website and logo stamped on exports
Float captures as floating window above other apps
GIF conversion for clips up to 45 seconds
Optional webcam bubble overlay
Native Swift app weighing about 2 MB
Unlimited captures and exports with no quotas
What makes it different
Explanations stay beside the source instead of requiring you to leave to look up terms
Questions cite specific passages from sources so answers are traceable
Notes automatically stay attached to the passages that prompted them
Works with PDFs, videos, podcasts and articles in one unified workspace
Permanently owned one-time purchase with no subscription or recurring fees