You don't restart.
The decisions you made three months ago, the patterns you noticed last week, the dialect you've spent years building — all there. Not summarized into a prompt. Substrate.
Personal · Intelligence Infrastructure Stop starting over
Stop starting over
with every AI.
Every model forgets who you are between sessions. Synap is the connective tissue that keeps you intact — across tools, across time, across vendors.
The model is the disposable part.
Move between Claude, ChatGPT, Cursor, a local model on your laptop — whichever you trust this month. The substrate carries you. The vendor doesn't own you.
Your mind isn't training data.
Tenant isolation by physics, not by policy. Cryptographically anchored, locally storable, self-hostable. The substrate stays yours even when the AI you're using doesn't.
Today on iOS
Free to start. Pro when it earns it.
Free
$0
Substrate, cloud sync, on-device AI. Enough to feel the difference.
Pro
$19.99/mo
Unlimited capacity. Deeper context. Background work. The full layer.