How it works
A hundred pings in. One short brief out.
Posthorn runs quietly on your Mac and turns the firehose of email, chat, and calendar into a calm, daily rhythm. Here’s the loop.
Connect what you live in
Gmail, Google Calendar, Slack, iMessage, Google Chat, Apple Notes — connect only what you want, in a couple of clicks. You can even add calendars you just watch, like a partner’s or the kids’ school.
It reads & triages — instantly
The moment a message lands, Posthorn judges it: does this need a reply, is it a task, just an FYI, or pure noise? Newsletters and receipts get filed away; repeat offenders get muted. The signal rises; the rest disappears.
It briefs you — a few times a day
Morning, midday, evening (and off-hours only if it’s urgent), Posthorn hands you one short brief: the few things that need you, each with a one-line “why now.” It even connects the dots into storylines instead of loose pings.
You act — with one tap
Reply to a draft it wrote in your voice, archive, snooze, schedule, or turn a “can you…” into a tracked task. Reversible things happen automatically; anything that leaves your hands waits for your say-so.
It learns you
Correct it in plain language — “Paul’s the CEO,” “always flag Lumen PRs” — and it sticks. Everything it learns is visible, with one-tap undo. The more it knows, the quieter your day gets.
Inside a brief.
Every brief is organized so you can read it in fifteen seconds — and empty sections simply don’t appear. Silence is a valid answer.
The single most important item, in a sentence — when there’s only time for one.
What needs action from you: decisions, owed replies, today’s deadlines.
What’s coming over the next few days, with lead time to prepare.
Context worth knowing — no action needed (incl. calendars you only watch).
The running list it’s tracking for you, carried forward until done.
Nothing leaves your hands without your say-so.
Reversible actions — archive, mark-read, snooze — just happen. Anything that touches another person — a reply, a send, a calendar response — waits in your queue for one tap. Posthorn never emails anyone as you without your explicit go-ahead.
See your day announced.
Join the private beta on Mac.