A workspace for reading articles, PDFs, videos and podcasts with AI explanations and cross-source questions
A notch app for Windows with 13 everyday tools
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.
$4.5 during flash sale, normally $14.5 USD. One-time payment, free updates.
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
Clipboard history - searchable and pinnable, with password manager exclusion
Paste stack - copy multiple items and paste them one after another in order
File shelf - temporary holder for files without modifying originals
Snippets with placeholders like date, clipboard and fill-in-the-blank
Mic mute and camera mirror with global shortcuts
Timer with countdown, stopwatch and Pomodoro modes with ring notification
Teleprompter that can be hidden from screen sharing
On-device AI chat with no account or data leaving your PC
Natural language calculator supporting expressions like percentages and unit conversions
Unit converter with 35 units across five kinds
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
No account, no subscription, no telemetry or analytics required
All data stays on your PC, not collected or sent online
On-device AI that doesn't require an account or internet after download
One-time payment with free updates forever
Single license key works on up to 3 PCs simultaneously