A workspace for reading articles, PDFs, videos and podcasts with AI explanations and cross-source questions
Fast, private, yours. A workspace ready for any AI.
Stage
Startup
Not given
Founded
2026
Not given
Based in
US
US
Pricing model
Freemium
Freemium
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.
Koru Local: free. Koru Cloud: $9.99/month for 100 GB storage, always-on sync and backup.
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
Offline-first notes with local database storage
Peer-to-peer sync between devices with end-to-end encryption
AI agents as tabs using MCP (Model Context Protocol)
Local voice input that works offline
Terminal and coding agent tabs beside documents
Multiple profiles for work, school and personal use
Native apps for Windows, macOS and Linux
Markdown import and export with code blocks
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
Free and fully open source with code on GitHub under MPL-2.0 license
Works completely offline with no account required
Bring your own AI without vendor lock-in
Local voice input that never sends audio to the cloud
Peer-to-peer sync without a server holding your notes
Omphalis
Koru