Features
Everything an assistant should do — none of the surveillance.
Every capability below is anchored to the same promise: it works because your data stays with you, not because it was uploaded.
Knows who's who
Resolves the people in your life
Roz builds an understanding of your contacts and the relationships between them from what's already on your device — so it knows who a message is really about.
It works from your own data — your address book never leaves your machine.
Follows the thread
Tracks commitments before they slip
It surfaces what you owe and what you're waiting on across mail, chat, and calendar — quietly, the way a good assistant keeps the ball from getting dropped.
Your data stays on your machine — not in a cloud index.
Two ways to think
Cloud only when you want it
Everyday use is free, and your data stays on your machine. When you want heavier reasoning, Roz can reach a cloud model — on your say-so, through a zero-retention relay or your own key.
You choose per task; the cloud is opt-in, never the default.
Your keys, your path
Bring your own model provider
Prefer to run on your own account? Add your key and Roz talks to your provider directly — the traffic never passes through us, so there's nothing for us to store.
BYOK means we're never in your data path — by construction.
Yours to hold
Local-first, yours to hold
Your working data lives on your machine and stays accessible whether or not you're online — and a billing outage never locks you out of your own life.
Auth is not encryption: your account status never gates your local data.
Wherever you work
Built for Mac, with Windows on the way
Roz is a first-class Mac app today, with Windows on the way — the same privacy model on each. Move between machines without moving your life into someone else's cloud.
The same local-first guarantees on every platform.
See it on your own machine.
Start free and local. Hosted depth from $9.99/mo — on Mac today, with Windows on the way.