Synap.ing

Your thoughts, connected. Capture anything in seconds, ask your own memory real questions, and watch your thinking become a living knowledge graph. Private by design

Synap: your second brain, visualized.

Your best thinking shouldn't vanish into a notes app you never reopen. Synap turns everything you capture (ideas, decisions, questions, the patterns you notice) into a living knowledge graph that connects your thoughts for you and hands them back when they matter.

Write a thought and Synap links it to everything related. Search by meaning instead of exact words. Ask a real question, like "what connects my thinking on X and Y?", and get an answer drawn from your own notes, with citations to the exact thoughts behind it. Then watch it all come alive as an interactive 3D map of your mind.

Synap works with or without AI. Every surface stands on its own: capture, search, graph, analytics. Bring your own assistant when you want one, or don't. Either way, your knowledge graph is yours, and it lives on your device.

WHAT YOU CAN DO

Capture anything, in seconds Thoughts, decisions, tasks, and open questions. By typing, by voice (transcribed on-device), from the share sheet in any app, or straight from your Apple Watch.

Find it by meaning On-device semantic search understands what you meant, not just the words you used. Nothing to phrase perfectly, nothing to remember.

Ask your own memory Chat with your knowledge graph using Claude, ChatGPT, or Google Gemini, or run it entirely on-device. Every answer cites the exact thoughts it was built on. Grounded in your notes, not invented.

See how you think Explore your ideas as a 3D knowledge graph. Open Insights to see your capture rhythm, your most-active hours, where your attention has gone, and how densely your mind is wired. Synap Wrapped reveals your cognitive archetype.

Catch your blind spots Discovery scans your graph for what you're not seeing: the unasked question, the dropped thread, the pattern forming just out of view.

Live on your home screen Widgets for Brain Pulse, Thought Stream, Health Pulse, and Graph Growth. The Dynamic Island shows live capture and sync. There's even a built-in SSH terminal to reach your own devices over a Tailscale mesh.

PRIVATE BY DESIGN Synap is local-first. Your graph, your semantic search, and your voice transcription all run on your device. Cloud sync is optional, and off until you turn it on. Your mind is not a data source.

FREE The full knowledge graph, every capture surface, semantic search, the 3D graph, widgets, terminal, and themes.

PRO Encrypted cloud sync across your devices, background sync, and hosted AI (coming soon).

Start capturing. Watch your second brain take shape.

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