iOS & iPadOS

Sudoku for iPhone and iPad

A calm sudoku that grows a forest.

Three daily puzzles, from a gentle Valley to a steep Summit, and one tree for every day you play. Hints that teach you why, and a board with nothing else on it.

Join the beta on TestFlightSee how it plays
  • No ads in any version
  • Plays offline
  • No account
Your forest: the October goal reached with 20 of 20 days, a hillside of grown trees, a current streak of 3 days and a longest of 6.Your forest: the October goal reached with 20 of 20 days, a hillside of grown trees, a current streak of 3 days and a longest of 6.
Sudoku Mori's Play screen: Today's three with Valley solved in 1:36, Ridge up next and Summit not started, a Play Ridge button, then Classic and the Single candidates lesson.Sudoku Mori's Play screen: Today's three with Valley solved in 1:36, Ridge up next and Summit not started, a Play Ridge button, then Classic and the Single candidates lesson.
A Classic Medium puzzle on iPhone, 30 of 81 cells filled with no mistakes or hints, undo, redo, erase, notes and hint under the board and a 1 to 9 keypad showing how many of each digit are left.A Classic Medium puzzle on iPhone, 30 of 81 cells filled with no mistakes or hints, undo, redo, erase, notes and hint under the board and a 1 to 9 keypad showing how many of each digit are left.

Ad-free

Not one ad, in any version.

An ad-funded game earns when you look away from the puzzle. Sudoku Mori earns once, when someone buys Full, so the board is the only thing on the screen. There are no analytics SDKs either, and nothing to sign up for.

Why no ads, and why offline
A Classic Medium puzzle on iPhone, 30 of 81 cells filled with no mistakes or hints, undo, redo, erase, notes and hint under the board and a 1 to 9 keypad showing how many of each digit are left.A Classic Medium puzzle on iPhone, 30 of 81 cells filled with no mistakes or hints, undo, redo, erase, notes and hint under the board and a 1 to 9 keypad showing how many of each digit are left.

Not in Sudoku Mori

  • Banner under the board
  • Video between puzzles
  • “Watch an ad for a hint”
  • Tracking and analytics SDKs
  • Account to sign up for
  • Subscription

Every day

Solve a daily, grow today's tree.

Each day brings three puzzles: Valley is gentle, Ridge asks a little more, Summit is steep. Play them in any order. The first plants a sapling, the second makes it a young tree, and all three give you a full tree for the day.

  • Sudoku Mori's Play screen: Today's three with Valley solved in 1:36, Ridge up next and Summit not started, a Play Ridge button, then Classic and the Single candidates lesson.Sudoku Mori's Play screen: Today's three with Valley solved in 1:36, Ridge up next and Summit not started, a Play Ridge button, then Classic and the Single candidates lesson.
    Today's three
  • The completion screen after the Summit puzzle: A full tree today. Solved in 6:48 with no mistakes or hints, and today's tree grown from sapling to young tree to full tree.The completion screen after the Summit puzzle: A full tree today. Solved in 6:48 with no mistakes or hints, and today's tree grown from sapling to young tree to full tree.
    A full tree

Your forest

Watch your month take root.

Every tree you grow stays on your hill. Grow one on 20 days and the month's hill is full. Your streak and best times for each daily are there when you want them, and streaks and the monthly goal can be hidden in Settings.

  • Your forest on iPad in landscape: the October goal reached with 20 of 20 days, a hill of grown trees, a 3-day streak, best times for Valley, Ridge and Summit, and the month's tree calendar.Your forest on iPad in landscape: the October goal reached with 20 of 20 days, a hill of grown trees, a 3-day streak, best times for Valley, Ridge and Summit, and the month's tree calendar.
    Your forest

Sudoku should feel like your morning coffee, not a slot machine.

Hints that teach

Stuck? Get a nudge, not the answer.

A hint first lights up where to look and says what to look for. Ask again and it shows the cell and explains why the number fits, then offers to place it. With Full, the “What this puzzle needed” screen after each solve shows which techniques it took and where your time went.

  • A hint during the Ridge puzzle: one cell outlined, its row, column and box lit, and a card reading Only 4 fits here with buttons to place 4 or practice the technique.A hint during the Ridge puzzle: one cell outlined, its row, column and box lit, and a card reading Only 4 fits here with buttons to place 4 or practice the technique.
    Hint
  • What this puzzle needed: the techniques the solve used, each hint and mistake with its cell and time, and where the time went per technique.What this puzzle needed: the techniques the solve used, each hint and mistake with its cell and time, and where the time went per technique.
    What this puzzle needed

Learn

Real techniques, one at a time.

8 short lessons on a trail from Single candidates to X-Wing. Each takes about three minutes: one worked example, then three exercises. The hint you just used tells Learn which lesson to offer next.

Join the beta on TestFlightRead the techniques
  • The Learn tab: eight techniques over three levels, Single candidates up next as a three-minute lesson, and Your practice below it.The Learn tab: eight techniques over three levels, Single candidates up next as a three-minute lesson, and Your practice below it.
    Learn

Day and night

Easy on the eyes, morning or midnight.

A full dark design under a moonlit sky. It follows your device, or you can pick light or dark in Settings.

  • The Summit puzzle on iPad in the dark theme, the board under a moonlit mountain and the keypad below it.
    iPad
  • The Summit puzzle in the dark theme on the folded iPhone Duo.
    iPhone Duo
  • A Classic Medium puzzle in the dark theme on iPhone, white digits on a deep navy board under a night mountain sky.
    iPhone 17 Pro

Widgets

Today's tree, where you already look.

Put the Today's tree widget on your Home Screen or Lock Screen. It shows your tree and which daily is next, and one tap opens that puzzle. It never shows the grid, a timer or a red badge.

A daily reminder, off until you ask for it
Lock Screen widgets
Home Screen widgets, small, medium and large

iPhone and iPad

Laid out for every screen it runs on.

Hold an iPad in landscape and the keypad moves beside the board, on whichever side you choose. The iPhone Duo gets its own layout folded and open. Every device here is drawn at its real size next to the others.

Sudoku on iPadSudoku on iPhone Duo
  • The iPad Play screen in landscape: Today's three as three mountain cards, Valley solved and Ridge up next, above the month's goal and a sapling on its hill.The iPad Play screen in landscape: Today's three as three mountain cards, Valley solved and Ridge up next, above the month's goal and a sapling on its hill.
    iPad, landscape
  • The Learn tab on iPad held upright, the next lesson and practice beside the trail of techniques.The Learn tab on iPad held upright, the next lesson and practice beside the trail of techniques.
    iPad, portrait
  • Your forest on the unfolded iPhone Duo, the hill of trees beside the monthly goal and streaks.Your forest on the unfolded iPhone Duo, the hill of trees beside the monthly goal and streaks.
    iPhone Duo, open
  • The Play screen on the folded iPhone Duo's outer display, Today's three with Ridge up next.The Play screen on the folded iPhone Duo's outer display, Today's three with Ridge up next.
    iPhone Duo, folded
  • A hint during the Ridge puzzle: one cell outlined, its row, column and box lit, and a card reading Only 4 fits here with buttons to place 4 or practice the technique.A hint during the Ridge puzzle: one cell outlined, its row, column and box lit, and a card reading Only 4 fits here with buttons to place 4 or practice the technique.
    iPhone 17 Pro

What's inside

The small things, done carefully.

Plays offline

Puzzles are made on your device, so a plane or a tunnel changes nothing. Your progress syncs through your own iCloud when you're signed in.

Notes that keep up

Touch and hold a number to add it as a note. The Fill notes button pencils in every candidate at once, and colours mark cells when you need them.

Mistakes that don't punish

Relaxed gives you unlimited mistakes. Challenge, in Full, turns hints off and allows three, and after the third you can carry on in Relaxed.

Streaks without guilt

Miss a day and your forest stays as it was. No red badges, and no message about losing anything.

Ten languages

English, Japanese, German, French, Spanish, Korean, Italian, Brazilian Portuguese, Traditional Chinese and Dutch.

A proper native app

Written in Swift and SwiftUI, with VoiceOver, Increase Contrast, Reduce Motion and haptics you can switch off.

Free and Full

Free every day. Full, just once.

The free download is a whole game you can keep playing. One purchase unlocks the rest, and nothing else is ever sold.

Free, every day

Free
  • Today's Valley, Ridge and Summit
  • Classic Easy and Medium, unlimited
  • Two lessons and unlimited hints
  • Your forest, streaks and best times
  • Daily Game Center leaderboards

No ads, no time limit.

Sudoku Mori Full

One purchase

$4.99One time, US price. The App Store shows the price where you live.

  • Classic Hard, Expert and Master
  • Challenge mode
  • Past dailies for your missed days
  • Every lesson, up to X-Wing
  • A review after every solve
  • Practice for your weakest technique

Bought once, shared with your family. No subscription.

Take a quiet moment today.

Sudoku Mori is in beta on TestFlight. Play it, tell me what to fix, and help shape it before it reaches the App Store. Today's three are waiting, and so is a sapling.

Join the beta on TestFlightWhat the beta includesEmail me at launch