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.
Entity resolution runs on-device; no address book 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 secretary keeps the ball from getting dropped.
Threads are stitched together locally from your own data, not a cloud index.
Two ways to think
On-device first, cloud when it helps
Small, fast work stays on a local model — instant and free. Heavier reasoning can reach a cloud model, on your say-so, through a zero-retention relay or your own key.
You choose per task; the default keeps everything on-device.
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. We never see the traffic, so there's nothing for us to store.
BYOK means we're never in your data path — by construction.
Yours to hold
Local-first, offline-capable
Your working data lives on your machine. Roz opens, works, and answers without a network — 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
Platform-agnostic: Windows & Mac
Roz ships as a first-class app on both Windows and macOS, with the same privacy model on each. Move between machines without moving your life into someone else's cloud.
Same on-device-first guarantees on every platform.
See it on your own machine.
Start free and on-device. Hosted depth from $9.99/mo, on both Windows & Mac.