Inbox CardinalWhat it does
One trustworthy view of what matters, across everything
Inbox Cardinal is a background assistant that connects to all of your email accounts and calendars and answers one question reliably: what actually needs my attention right now, across everything?
What Inbox Cardinal does
It watches every connected account, ranks every message on one 0 to 100 scale, keeps a single priority feed, sends one short daily brief, escalates the genuinely critical items, and flags calendar conflicts that span your separate worlds. It is not another inbox; only items above your priority bar appear, so a spam-heavy account contributes almost nothing.
Connect everything
Google (Gmail, Workspace), Microsoft (Outlook, 365), any standard IMAP mailbox, and a forward-anything address for the rest.
Group into your worlds
Company A, the board seat, personal life. Each entity keeps its own boundaries and its own VIPs.
One comparable scale
Importance is scored with entity awareness, then normalized so your worlds are finally comparable.
What makes it different
Email assistants triage inside one account. Calendar tools optimize time but cannot read importance. Inbox Cardinal is the only tool that ranks what matters across your separate businesses and lives at once. We call those worlds entities, and cross-entity ranking is the thing nobody else does.
Explainable scores
Every item shows why it ranked where it did. Trust is built on "here is why," not "trust us."
Escalation with manners
Critical items reach you by push notification with email fallback, deduplicated, rate-limited, quiet hours respected.
You stay in control
It suggests, it never acts silently. Autonomy controls decide what it may do versus what it must ask.
How it works
1. Connect
Secure sign-in with each provider. Per-account consent, never organization-wide access, no passwords shared for Google and Microsoft.
2. Group
Sort accounts into entities and mark your VIPs in each world. A few minutes, once.
3. Live normally
Keep using your email apps exactly as before. Inbox Cardinal watches quietly behind them.
4. Trust the tap
The feed, the morning brief, and the rare shoulder-tap when something truly cannot wait.
Your privacy, by design
We never train AI on your email or calendar content. Everything is encrypted in transit and at rest. Disconnect any account and its data is purged. Your content flows directly between your providers and Inbox Cardinal, with no third-party middleman. Read the full commitments.
Coming soon
What's coming next
Today, Inbox Cardinal focuses on doing one thing exceptionally well: making sure you never miss what matters across all your accounts. These capabilities are coming next, and beta users help shape them.
Learns what matters to you
The priority score sharpens to you over time, from what you open, reply to, and skip.
Replies drafted in your voice
One-tap, on-brand draft responses for the messages that actually need one.
Commitments, never dropped
Tracks what you have promised and what you are owed across threads.
Scheduling across your worlds
Finds and proposes meeting times across your separate calendars and entities.
Just ask "what did I miss?"
A conversational layer over everything: ask your inboxes and calendars anything.
Bring any source
Pipe Slack, Teams, Fiverr, SMS, anything, into one prioritized feed.