One task in front of you. Everything else can wait.
Focus Mode counts down a focus interval and then a break, with a progress ring and a running count of finished sessions. Set the lengths, pick the task you mean to work on so it stays in view, and play rain, fire or a café in the background.

Set the rhythm
Focus lengths of 15, 20, 25, 30, 45 or 60 minutes and breaks of 5, 10 or 15. The Focus and Break tabs switch modes; the reset button returns the countdown to the full length.
Sound that stops when you do
Rain, Fire or Cafe loop quietly while the timer runs and stop the moment you pause, so the sound is a signal that you are working rather than a radio left on.
Free, like the rest of the daily set
Tasks, Calendar, Planner and Focus are included on every plan, with both workspaces. Focus is the one that asks nothing of your data; it only asks for the next 25 minutes.
What it is not
It is a timer with a log, not a timesheet: there are no totals per task, no reports and no streaks. On the web the countdown, the chosen lengths and the sound live in the page and reset when you reload it; only a finished interval is kept.
Further reading
Focus is on every plan
Start on Free, with no card. Upgrade from Settings when a module earns it.