Koku - Pomodoro Timer Without Accounts

Distraction-free focus timer with no accounts or subscriptions

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Updated Jul 2026 · Added Jul 2026

apps.apple.com

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What is Koku?

Koku is a minimalist focus timer app designed for deep work using the Pomodoro technique. Users set their own session lengths or use the classic 25-minute focus/5-minute break rhythm, with each minute visualized as a dot that fills during the session. Built for iPhone with Apple Watch companion app, it requires no accounts, subscriptions, or streak tracking - just time and work.

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Key Features of Koku

Customizable focus and break durations
Apple Watch companion app with complications
Home Screen widgets (small and medium sizes)
Lock screen Live Activities display
Dot grid visualization for session progress
Haptic feedback on play/pause
Light and dark mode
Works in any language
Keep screen on option
Zen mode with quiet buttons

Who Should Use Koku?

Deep work sessions for developers and writers

Pomodoro technique tracking for productivity

Break reminders for office workers

Study timer for students

Focus management for remote workers

Koku: Pros & Cons

✓Pros

No accounts or subscriptions required
Minimalist, distraction-free design
Apple Watch integration with full controls
Home Screen and lock screen widgets
Customizable session lengths
Works in 8 languages
Privacy-focused

✕Cons

iPhone-only app (not fully optimized for macOS)
Limited features compared to subscription-based timers
No cloud sync or data backup across devices

Frequently Asked Questions about Koku

Can I use Koku on my Mac or is it iPhone only?

Koku is built for iPhone with a companion Apple Watch app. It is not fully optimized for macOS, so if you need a timer on your Mac, you would need another tool or rely on the iPhone version when at your desk.

Does Koku work with custom session lengths, or is it locked to 25-minute Pomodoros?

You can set your own focus and break durations. Koku offers the classic 25-minute focus and 5-minute break as a starting point, but the timer is fully customizable for whatever rhythm suits your work.

Can I see my Koku timer on my lock screen or home screen?

Yes. Koku includes a lock screen Live Activities display so you can glance at session progress without opening the app, plus small and medium home screen widgets for quick access.

Will my Koku sessions sync across my iPhone and Mac if I own both?

Koku has no cloud sync or data backup across devices, so sessions stay on the device where you logged them. Each device keeps its own history.