Doku: Minimalist Sudoku

No ads between puzzles. No subscriptions. Just clean, elegant Sudoku — offline, always free. Your next puzzle is one tap away.

The last Sudoku app you'll ever install.

Doku strips everything back to what matters the puzzle. No flashing banners. No cluttered menus. No forced accounts. Just you and the grid, exactly as it should be.

Designed for people who take their focus seriously, Doku feels as natural as pencil on paper, but faster, smarter, and always in your pocket.

WHY DOKU:

Zen-like minimalism, a clean, breathable interface built to reduce mental fatigue and keep you in flow.

Smart haptic feedback, feel every move with subtle tactile responses that make logic genuinely satisfying.

Adaptive themes, switch effortlessly between light, dark, and OLED-black modes to match your environment.

Mindful progress, track your best times and win streaks without pressure or gamification noise.

Pure logic, no pay-to-win hints, no shortcuts. Just you, your reasoning, and the grid.

KEY FEATURES:

• Three difficulty levels : Easy, Medium, and Hard, each perfectly balanced
• Fully offline : no Wi-Fi needed, ever
• Auto-save : pick up exactly where you left off
• Smart greeting : dynamic motivation based on your time of day
• Lightweight : no loading screens, no bloat, instant launch
• OLED-black dark mode : easy on the eyes and the battery
• Free forever : no subscription, no hidden cost

Whether you're sharpening focus over morning coffee or quietly unwinding before sleep, Doku fits your rhythm without demanding your attention.

Download Doku. Master the grid. Find your flow.