Apex Sudoku
Apex Sudoku app icon

Sudoku, refined.

A calm, beautifully crafted sudoku with six real difficulty levels, hints that teach you the technique, and a new daily challenge every morning. No ads. No tracking.

Coming soon to theApp Store Coming soon toGoogle Play

Everything a great sudoku should be

Thoughtful details at every step, from the first easy grid to the hardest puzzles you'll ever solve.

Difficulty you can trust

Six levels, graded by the solving techniques each puzzle actually needs, from simple singles to long chains. Every puzzle solves by logic alone. No guessing.

Hints that teach

Stuck? A hint names the technique and explains why it works, such as "5 can only go in one place in box 3", before it ever shows you the answer.

A daily challenge

A new puzzle every day at every level, the same for everyone. Build a streak and watch your calendar fill with checks and crowns.

Smooth, smart play

Pencil notes that clear themselves, unlimited undo, and highlights for rows, columns, boxes and matching digits. Tap a cell or a number first, whichever suits you.

Stats and achievements

Best and average times, win rates and perfect games for every level, plus sixteen achievements to unlock along the way.

Made to feel good

Gentle haptics, soft sounds, satisfying completion effects, light and dark mode and six color themes, on iPhone, iPad and Android.

Six levels, one smooth climb

Start where you're comfortable, then reach for the summit.

BeginnerPlenty of clues. Every move is a simple single.
EasyFewer clues, still solvable with singles alone.
MediumLocked candidates and pairs.
HardTriples, X-Wings and XY-Wings.
ExpertSwordfish, XYZ-Wings and coloring.
MasterLong chains. For seasoned solvers.

Clean, focused screens that keep the puzzle front and center.

Play screen with a game to continue and the daily challenge
Pick up where you left off
A Medium puzzle in progress with pencil notes
Notes and smart highlights
Results screen showing a new best time and achievements
Celebrate every solve
Daily challenge with a 12-day streak and calendar
Keep your streak alive
Statistics by level and achievements
Track your progress
The game in dark mode
Beautiful in the dark

Private by design

Apex Sudoku is just a game. It doesn't need to know anything about you, so it doesn't ask.

No account

Open it and play. Nothing to sign up for.

No ads

Nothing interrupts your puzzle.

No tracking

No analytics and no data collection. Your progress stays on your device.

Works offline

Plane, train or tunnel. Every feature works without a connection.