Meet Sumbi — a tiny ocean friend who grows every time you breathe. Just 3 minutes a day.

Your ocean companion is waiting. Breathe together for 3 minutes and watch Sumbi grow.

Ease stress, sleep better, and build a breathing habit — with a cute character by your side, every single day.

-- WHY SUMBI? --

A Breathing Buddy That Grows With You

• Sumbi grows with every breathing session you complete
• Customize your companion with eyes, mouths, and accessories
• Level up together and unlock new items

Build a Breathing Habit in 3 Minutes

• Box Breathing (4-4-4-4): Sharpen focus and ease stress
• 4-7-8 Breathing: Deep calm for better sleep
• Pick your pattern, breathe, done

Streaks That Actually Motivate

• Track your daily streak and watch it grow
• Morning reminders so your breathing habit sticks
• Sleep mode for a peaceful breath before bed

An Ocean World That Breathes With You

• Gentle wave sounds sync with your breathing rhythm
• Calming visuals inspired by Jeju's ocean

Meditation was always too hard to start. Sumbi makes it as easy as breathing — because that's all it is.