✨ A NEW PUZZLE EVERY DAY

Sudoku, but sweeter —
and it doesn't need the internet.

Candoku is a candy-themed Sudoku app with a new puzzle every day. Play anywhere — on a flight, underground, out of signal. No wifi, no login, no pressure.

App Store Google Play Download free — App Store · Google Play

Features

✈️

Play completely offline. No wifi, no account, no connection required — your puzzle is always there, wherever you are.

📅

A new puzzle every day. A short daily challenge that fits into a few quiet minutes, and a streak you can come back to.

💡

Stuck? Tap a hint. A gentle nudge when a board has you stumped, so being stuck doesn't have to end the board.

🎚️

Four levels, easy to expert. Start gentle or go straight for the hard one — more on that below.

Why a daily Sudoku break lands differently

Nothing mystical. Sudoku is just built in a way that most things on your phone aren't.

🎯

Nothing is hidden from you.

A proper Sudoku has exactly one answer, and every clue you need to reach it is already on the board the moment it opens. No dice, no shuffle, no information the game is keeping to itself. When the board closes, you're the one who closed it.

⏹

A break that actually ends.

A feed has no bottom. A board does. You open it, you finish it, you put the phone down — and a brief puzzle break can feel more contained than open-ended scrolling.

📈

Three rules. Years of boards.

The whole game explains itself in about a minute: every row, every column and every 3×3 block gets 1 to 9, once each. That's it. Those three rules still generate boards that push back years later — which is why Sudoku outlasts most things you download.

🤫

Nobody else is in the room.

Sudoku is a solo game by design — no opponents, no lobby, no one waiting on your move. Just you, nine by nine, at whatever pace you feel like, and a board that doesn't mind being left mid-move.

Why Candoku

Candoku pairs a genuinely offline Sudoku experience with a softer, candy-coated look — no grey grids, no forced connectivity, no clutter. It's free to play today, with four difficulty levels from easy to expert, so it grows with you instead of staying one-note.

How to play Sudoku on CANDOKU

Classic Sudoku logic, redesigned as a playful daily puzzle break.

Pick a puzzle

Start with the daily challenge or choose your own level.

Read the board

Look across rows, columns and blocks to spot what's missing.

💡 Solver's tip — scan, don't stare.

Pick one number, say 5. Find every row, column and block that already has a 5. Cross those off in your head and look at what's left — the empty cells that survive are the only places the next 5 can go. It's faster than staring at one square hoping it speaks to you.

Use logic, not luck

Place each number by deduction, pattern-spotting and elimination.

Get help when you're stuck

Use a hint to keep moving without breaking the flow.

💡 Solver's tip — change the question.

Stuck on a cell? Stop asking "what goes here?" and start asking "where can this number go in this block?" Same board, opposite direction. It breaks more deadlocks than staring harder does.

Finish your daily win

Complete the puzzle, build your streak, come back tomorrow.

💡 Solver's tip — check before you commit.

Before you fill a cell you're only mostly sure about, run its row, its column and its block one more time. One wrong number early doesn't feel wrong for another twenty moves — and by then it's the whole board.

From easy to evil — Sudoku for every mood.

Some days call for a gentle warm-up. Others call for a real fight. Candoku gives you four levels — Easy, Medium, Hard and Expert — so the puzzle matches how you're feeling, not the other way around.

🌱 Easy

A relaxed start, good for a quiet break or if you're newer to Sudoku.

⭐ Medium

A steady, satisfying challenge for your daily habit.

🔥 Hard

For when you want the board to actually push back.

⚡ Expert

The real test. Not for the faint of heart.

App Store Google Play

Availability

Candoku is available on iPhone, iPad, Android, and tablet.

Common Questions

Everything you need to know about Candoku.

Is Candoku free?

Yes — Candoku is free to download and play today.

Do I need internet?

No. Candoku plays fully offline — no wifi, no account, no login. It's a good travel companion for exactly that reason.

Is it classic Sudoku?

Yes — the classic 9×9 logic, in a candy-colored theme. Same rules you already know, softer board.

What difficulty levels are there?

Four: Easy, Medium, Hard and Expert — one for a quiet warm-up, one for a real challenge.

Sudoku, but sweeter — and it doesn't need the internet.