
Groupthink keeps a record of the people you deal with regularly, and most of it fills itself in.
We keep adding to that list, because the record is worth more the less you have to feed it.
Thirty seconds, no sound: a contact goes quiet, you log the visit that Groupthink could not see, and the record catches up. Illustrated with invented people.
Your dad’s birthday dinner. The call you took in the car. Coffee with someone you have been meaning to hire for a year. The friend who stayed at your house for four days. No invite, no transcript, no attendee list.
It is also the gap you live in on day one, before you have connected anything. And a contact whose record stops in June is one you stop trusting, which is the real cost.

Two clocks per person: live conversations, and everything asynchronous. Logging is how you keep either one honest when nothing captured the conversation.
At the top of the left sidebar there is a single field. Type what happened the way you would text a friend about it and press Enter.
grabbed dinner with Theo, he’s worried about his Q3 number
Groupthink works out who you mean, files it on that person, and shows a Filed line with their name as a link so you can check where it landed. Press ⌘K from anywhere to jump into the box.
It does not have to be a meeting. “Ines got promoted to director” is a perfectly good thing to tell it.
Log interaction on a person’s page gives you a title, a date, everyone else who was there, how it happened, and a notes field that takes any format: raw notes, a Granola export, a pasted transcript, a Slack thread.
Three things worth knowing:
This is the piece that shipped this week. A friend flying in Thursday and leaving Saturday is not a Thursday, and neither is a four day conference with a colleague. Those went in as a single day plus a note saying “he is here until Saturday,” and the clock that tracks how long it has been since you saw someone stopped on the day he landed.
Now you set the start, click + End date, and set the day it ended.
Set the start in the future and Groupthink files it as a plan instead, which is how you record dinner next Thursday when sending a friend a calendar invite would be strange.

What you get back: the arc across every interaction, and the things you said you would do.
Live now on the web and in the desktop app. Full walkthroughs in Log an Interaction and The Capture Box.