Private by physics
Speech recognition, responses, and the Inner World Model run on your device.
A listener for your inner world.
Say what is on your mind. Seity listens, responds out loud, and remembers what you said before, privately, on your iPhone or Mac.
You deserve to be heard
We have always made sense of life out loud. We spoke to elders, to friends around fires, to people who remembered our patterns and watched us grow across seasons. Growing was never meant to happen in isolation.
Modern life leaves little room for that kind of listening. We collect notes, save thoughts, and move on. A record of what happened is not the same as being heard.
Seity is here to restore that space.
A listener that remembers
Seity is an Inner World Model you speak to out loud, on your iPhone or Mac. No forms, no blank page, no pressure to sound articulate. Just you, speaking what is real, and Seity listening, responding, and remembering.
We’re building Seity to develop a living model of your recurring thoughts, behavioral patterns, emotional rhythms, and the landscape underneath your days.
The intention is to listen and reflect without steering, coaching, or pushing you toward a productive outcome. Reflection should leave room for your own understanding.
Our vision is a listener that learns your rhythm over time: how you express yourself, what matters to you, and when you need space.
What makes Seity different
Fast as thought
There is no round trip to a server: Seity responds from your device, close to the conversation.
Memory that matters
Memory is about more than saving words. We’re building it to connect themes and patterns across time.
Emotionally present
We want Seity to notice the shifts in what you say: when you’re stressed, when you’re hopeful, when something has changed.
The name
“Seity” means selfhood:
the quality of being yourself.
We chose this name because Seity is fundamentally about exploring who you are. We build it around on-device intelligence: your device processes the conversation and holds the Inner World Model.
Your seity belongs to you alone.
Made in Amsterdam
Seity is made by a10n, a small group of AI engineers in Amsterdam. We believe intelligence should live on your device, and that your most personal thoughts should remain yours.
We believe in growing slowly, building carefully, and earning the right to exist in someone’s most private moments.
Read our promise, or contact us at hello@a10n.io.
Try Seity.
Talk something through on your own iPhone or Mac, and see what Seity remembers the next time.
Join the betaFree public beta. English only, on iPhone 16 or newer or a Mac with M2 or newer.