Built for founders, writers, and developers who need long, uninterrupted sprints. Set 30, 60, or 90-minute deep work sessions with a 10-minute audio reminder and end alarm.
Three steps to a productive deep work session.
Select 30, 60, or 90 minutes — or type any custom duration. Research shows 90-minute cycles match natural ultradian rhythms for peak focus.
Press Start, close all distractions, and work. A subtle chime plays every 10 minutes to keep you anchored in time without breaking your flow.
When your sprint ends, a clear alarm fires. Step away for 10–20 minutes before your next session. Consistent rest is what makes deep work sustainable.
Deep Work is a term coined by productivity researcher Cal Newport, defined as cognitively demanding tasks performed in a state of distraction-free concentration that push your cognitive capabilities to their limit. These efforts create new value, improve your skills, and are hard to replicate. Contrast this with “Shallow Work” — non-cognitively demanding tasks (emails, meetings, admin) that can be performed while distracted.
Extended focus sessions (60–90 minutes) outperform the classic 25-minute Pomodoro for complex cognitive tasks because they allow your brain to fully enter a state of flow. It typically takes 15–20 minutes for the prefrontal cortex to engage deeply with a challenging problem. Interrupting at 25 minutes cuts the session before peak cognitive performance is reached.