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Winnow
ActivePassive knowledge capture — save articles, and Winnow delivers the key ideas back to you as push notifications throughout your day.
Ruby on Rails 7.2React NativeExpoChrome ExtensionPostgreSQLRedisSidekiqOpenAI
The Problem
People save dozens of articles but rarely revisit them. The knowledge fades, and the time spent reading is lost. Existing tools require active study sessions that most people never stick with.
Our Approach
Winnow extracts key ideas from articles you save — via the mobile share sheet or a browser extension — and delivers them as push notifications. No app to open, no study sessions to schedule. Knowledge comes to you passively, respecting your attention with thoughtful throttling.
Key Features
- Notifications as the primary UI — value delivered without opening the app
- AI-powered idea extraction from saved articles
- Frictionless capture via mobile share sheet and browser extension
- Attention-respecting notification throttling
- Cross-platform: iOS app, web dashboard, and browser extension