Synap.ing

Your second brain, visualized. Capture decisions, patterns, and insights into a knowledge graph that thinks with you — not just stores for you.

Synap — your second brain.

Capture thoughts, decisions, and patterns into a living knowledge graph. Search by meaning, not just keywords. See your thinking visualized in 3D.

• Cortex Dashboard — your daily cognitive briefing with streaks, threads, and signals • AI Chat — talk to your knowledge graph with Claude, OpenAI, Gemini, Grok, or Ollama • 3D Knowledge Graph — interactive visualization of how your ideas connect • Semantic Search — find thoughts by meaning using on-device vector embeddings • Penumbra — AI blind spot detector that finds what you're missing • Cognitive Archetype — discover your thinking style with Synap Wrapped • Widgets — Brain Pulse, Thought Stream, Health Pulse, Graph Growth on your home screen • Dynamic Island — live sync status and capture progress • SSH Terminal — connect to your devices via Tailscale mesh • Voice Capture — speak your thoughts, transcribed on-device • Share Extension — capture from any app • Apple Watch — quick capture and brain pulse complication

Privacy first: everything works locally. Cloud sync is optional.

Free: Full knowledge graph, all capture surfaces, semantic search, widgets, terminal, themes Pro: Cloud sync across devices, background sync, hosted AI (coming soon)

Terms of Use: https://synap.ing/terms Privacy Policy: https://synap.ing/privacy