日本Brain Training · Free · iOS & Android

Sharpen your mind.
Every day.

凛, Rin

Logic puzzles, Japanese culture, and a daily omikuji fortune. MyRin trains your brain the way Japan trains its craftsmen, small, deliberate steps, every day, forever.

App StoreGoogle Play

30 puzzle games · 18,000+ levels · 201 Japan culture facts

改善KaizenContinuous improvement, 1% better every day.
生き甲斐IkigaiYour reason to train. Your reason to grow.
無心MushinNo-mind state. Pure flow. Pure focus.
こだわりKodawariObsessive quality. Never settling.

静けさや岩にしみ入る蝉の声

The stillness, seeps into the rocks, the cicada's voice

Matsuo Bashō · 1689

// 日本文化 JAPAN CULTURE

201 Japan culture facts
woven into every session.

Between games, MyRin surfaces facts from Japanese history, philosophy, art, nature, and innovation, building a quiet cultural education alongside your brain training.

哲学 Philosophy侘び寂び

Wabi-Sabi

The Japanese aesthetic of finding beauty in imperfection and impermanence. A cracked bowl repaired with gold. A fading season. Accept imperfection, as it is.

自然 Nature花見

Hanami

Cherry blossom viewing, a tradition over 1,000 years old. The sakura blooms for just two weeks. Its beauty lies precisely in how briefly it lasts.

文化 Culture一期一会

Ichigo Ichie

"One time, one meeting." Every encounter is unique and will never recur exactly. Simply be here, now. In life. In every puzzle.

革新 Innovation新幹線

Shinkansen

Japan's bullet train reaches 320 km/h with average delays under 1 minute. Precision, reliability, and kaizen applied at national scale.

大吉Daikichi · Great Blessing

The crane lifts without
effort, it has always known
the way of its wings

Your abilities exceed what you believe. Spread your wings today.

// 御神籤 OMIKUJI

A daily fortune.
A moment of reflection.

Every day MyRin draws an omikuji, a fortune slip from Japan's shrine tradition, over 1,000 years old. Six tiers from 大吉 (Great Blessing) to 凶 (Caution). Each paired with a haiku.

Draw today's fortune →

// ゲーム GAMES

30 games.
Every cognitive dimension.

一筆
One LineEuler path logic. Draw every edge exactly once.
色分け
Color SortSort tubes by color. Deadlock is the enemy.
記憶術
Memory MatchSpatial memory. Find every pair in fewest flips.
算数
Math PuzzleComplete the equation. Speed + accuracy.
数列
Number SequenceArithmetic, geometric, quadratic patterns.
記憶
Simon SaysExpand your sequential memory span.
図形
Pattern MatchingRotate, reflect, identify transformations.
迷路
Maze SolverNavigation logic. Solve from both ends.
積木
Block PuzzleSpatial planning. Three pieces ahead, always.
九格
Nine GridFill 3x3 sections. No isolated cells.
言葉
Word ScrambleUnscramble the word. Suffixes first.
数独
SudokuConstraint logic. No guessing ever needed.
裏返し
Flip MatchFace-down pairs. Memory by quadrant.
速算
Arithmetic BlitzTimed mental math. Round and adjust.
目探し
Visual SearchFind the odd one out. Soft gaze wins.
河内
Tower of HanoiRecursive planning. 2n-1 moves.
反応
Reaction SpeedPure reflex. Tap the instant it appears.
路線
Grid ConnectConnect dots. Fill every cell. No crossings.
天秤
Balance ScaleFind the weight that levels both pans.
落下
Math DropEquations fall. Solve before they slip past.
合成
2048Corner strategy. Monotone gradient wins.
手毬
Temarimyrin.gameDescs.temari
家紋
Kamonmyrin.gameDescs.kamon
煉瓦
Bricksmyrin.gameDescs.brick
回路
Infinity Loopmyrin.gameDescs.infinityLoop
色名PRO
Stroop ChallengeName the ink color, not the word.
回転PRO
Mental Rotation3D spatial reasoning. One feature at a time.
分類PRO
Speed SortSwipe-categorize under the clock.
凛

Rin Pro, Four Japanese Originals

Four authentic Japanese puzzle formats. Logic as art form.

歌留多

Rin · Karuta

Lightning card-matching from the Ogura Hyakunin Isshu.

加算

Rin · Kakuro

Addition crossword. 45 forced combinations.

橋

Rin · Hashi

Build bridges connecting every island.

塗壁

Rin · Nurikabe

Carve a river between white islands.

10 games · 5 levels each · no account needed

// FREE DEMO · PLAY NOW

Try 5 levels.
No download. No account.

Pick a game, play 5 levels here, then unlock 600 in the app.

// 脳のランク BRAIN RANKS

40 ranks.
One ascent.

XP earned from every game, every daily challenge. Three tiers, each a different kind of mind.

TIER 1
覚醒Kakusei · Awakening
8 ranks
01見習い

Minarai · The first steps on the path.

02修行者

Shugyosha · Discipline is the seed of skill.

+5 ranks to earn
08覚者

Kakusha · Something has shifted within.

TIER 2
練磨Renma · Refinement
9 ranks
09九級

9th Kyu · Patterns begin to emerge.

10八級

8th Kyu · Links form between ideas.

+6 ranks to earn
17一級

1st Kyu · The rank before mastery begins.

TIER 3
鍛錬Tanren · Sharpening
23 ranks
18初段

Shodan · First Dan. A new chapter opens.

19二段

Nidan · Thinking several moves ahead.

+20 ranks to earn
40天下人

Tenkabito · Ruler of All Under Heaven.

// 記事 ARTICLES

The science, the culture,
the strategy.

20+
articles on Japanese culture,
cognitive science & puzzle strategy

// 本 EBOOK

The Mind Games of Japan.
Inside the app.

My Rin includes a full ebook: Go, Shogi, Mahjong, Karuta, Sudoku, and the puzzle traditions of Japan. History, rules, and strategy in one Essential Edition.

Available free inside the app on both platforms.

iOSAndroid

Free with the app · iOS & Android

// 始める GET STARTED

Begin with
level one.

Free on iOS and Android. 8 full game types, no level caps, no account required. Upgrade to Pro for the four Rin Japanese puzzle games.

Download on App StoreDownload on Google Play

Stika Studio · stikastudio.com