Satu

Satu is a calm productivity app for Mac that lives in your menubar and helps you focus on one task at a time. Instead of juggling lists, you type a single task (or skip it and just track time), and a running timer sits quietly in your menubar showing how long you've been focused.

Core features include gentle break reminders with adjustable intervals, delivered either as a soft notification or a full-screen block; a built-in lofi and ambient music player for getting into flow; and a dedicated Chill Mode for playing lofi tracks with no timers or task tracking at all. A Pro upgrade adds custom YouTube link support, Apple Reminders integration, favorite tracks, quick notes, a floating always-on-top mini window, flexible reminder scheduling, extra themes, and weekly focus reviews.

Satu is a native macOS menubar app distributed via the Mac App Store, with a free base version and an optional Pro upgrade for power users who want deeper customization.