
Saarthee CoPlanner by NAS
Your personal operating system for mail, calendar, and work
One place that reflects mail, calendar, tasks, files, and Notion — with sync you can trust and AI that grounds on your data, not a blank chat window.
Pilot is invite-only — connect Google or Microsoft mail when you're in.
What Saarthee does today
Core read + send paths are live for Gmail and Microsoft. Calendar CRUD and deeper automation are on the roadmap.
Why Saarthee is different
Planners rarely own email deeply. Mail clients don't build a cross-stack object model. AI assistants often skip durable sync. Saarthee bridges that gap.
Not another chat wrapper
A personal operating system — inbox, calendar, files, and Notion in one place — not a session that forgets your mail when the tab closes.
Engineering-grade sync
Incremental sync, outbox for sends, idempotency, and Sync Health visibility. Built for reliability as accounts and volume grow.
Trust by design
Revoke connections in Settings, explicit scopes, privacy and terms in-app. You control which providers are linked and when.
Multi-vendor by default
Connect several Google and Microsoft mailboxes. Saarthee normalizes them into one queryable store — the gap planners and mail clients leave open.
Ready to co-plan your day?
Sign in, connect a mail account, and open Today or Inbox. Sync Health shows when your data is fresh.