Kairu

Kairu is a free focus and time-tracking app built for people who want to stay productive without overcomplicating things. It helps you structure your day into focused sessions, track your time effortlessly, and see meaningful stats about how you’re actually spending your hours — no clutter, no distractions.

You can start a session with one click, earn streaks for consistent focus, and track your daily, weekly, and monthly progress. Kairu is free to use, lightweight by design, and built for people who care more about getting things done than managing endless to-do lists.