One screen: the time that is left, the task you picked, and a Start button. Guests can run a full session with no account; signing in later saves history, streaks and analytics.
The /focus app is the usable timer itself, not a page about a timer. Open /focus?duration=25&task=Revise+thermo to pre-arm a 25-minute slice with a task attached.
Pick a duration or follow a link with one baked in. Press Start once — the timer is deadline-based, so background tabs, screen lock and sleep do not skew it. Pausing preserves the slice; completing records minutes, XP and streak progress.
Guests keep the current session across refresh and close on the same device. Signing in adds cloud history, streaks across devices, the AI coach and study rooms; local history is imported once, never overwritten.
No. The timer runs fully for guests. An account adds cloud history, streaks, AI coaching and rooms.
Yes. /focus?duration=25&task=Revise+thermo arms a 25-minute slice with the task attached. Links from Instagram use /go/ig.
Yes. Remaining time derives from a wall-clock deadline, and the server re-verifies durations on save.
Save sessions with a free account