Atlas

Work, projects or family, pinned where they are in their local time, the moment Atlas opens. A daylight band sweeps around the globe and a second marks working hours, so a glance tells you who is awake, who is mid-afternoon and who turned in hours ago. Hold Command and drag the map to scrub time and watch the day move across everyone at once.

Atlas scores every slot across the next working days and floats the top three up, each graded great, okay or painful. It optimises for the worst-off person rather than the average, and says so plainly when no slot suits everybody, because San Francisco and Tokyo cannot both have a comfortable morning.

Work, projects, family, a five-a-side side, each a keystroke away with Command 1 to 9. Quick Check throws a few cities together for a one-off question and forgets them afterwards. Set the working hours that suit you, so an evening group need not run nine to five.

A glance at who's awake, right from the top of your screen. The icon draws a constellation, one dot per person, and the popover sorts everyone into early morning, dawn, daytime and evening, with a quiet nudge when somebody is about to finish for the day.

Apple, Google, Outlook, Yahoo or a universal .ics, with everyone's local time written into the invite. Connect a calendar, entirely optional, and Atlas hides the times you are already busy and picks a free one instead. Or copy a conversational draft, written in everyone's local time, to paste wherever you talk.

Everything stays on your Mac. No account, no servers, no tracking, ever. Your groups sit in a plain file on your machine and the world map is built into the app, so it draws with no connection at all.