Rosi is a personal AI assistant that runs on your machine. Not a cloud service. Not another app to open. Rosi lives in the background, learns your preferences, and is always just a message away.

Rosi tracks your expenses, manages your calendar, remembers what matters to you, does deep research, and greets you every morning — all from a conversation in your favorite messaging app. Telegram today. WhatsApp, Slack, and iMessage coming soon.

memory
Book me a table at that Thai place I liked
R You mean Siam Kitchen on Church St — you said the pad see ew was incredible back in January. Booking for 2 at 7pm?
Perfect
R Done. I added it to your calendar with the address.

ALWAYS ON

Rosi runs quietly in the background on your computer — checking your schedule, sending reminders, and greeting you each morning — even when you're not chatting.

WHAT SHE DOES

HOW IT WORKS

01
⬇

Set Up

Download Rosi and it starts running on your computer. macOS today, Windows and Linux coming.

02
🔗

Connect

Link your messaging app — Telegram now, WhatsApp, Slack, and iMessage coming soon.

03
💬

Talk

Just send a message. No app to open, no dashboard to learn.

PRIVATE BY DESIGN

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Everything stays on your machine — your conversations, your data, all of it

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No cloud storage. No tracking. No data collection.

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Your information is stored locally and you can see it anytime

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Fully transparent — you can review exactly how Rosi works

meet rosi

Currently available on macOS. Windows and Linux coming soon.