A space for your worries and your quiet thoughts alike.
A new kind of experience that gently untangles your heart — and makes everyday life a little lighter.


Self-understanding · Relationships · Emotions · Career · Wellness
Each Cocoro Expert offers insights and guidance tailored to your current theme.



🌱 Bright and innocent, always smiling
🫶 Gentle, honest, and calming
🔥 Sincere and quietly hardworking
From the moment he was born, Laforn kept wondering,
“Who am I, really?”
Sometimes his brightness felt like him, and so did his doubts —
but somehow, each of them also felt just a little different.



☀️ Cheerful and refreshing, with great awareness
🤝 Easy to connect with anyone
🧭 A caring, slightly meddlesome leader
Konika was born with a rare sensitivity to the presence of others.
The smallest changes — a shift in expression, the warmth of a voice, a moment of silence — she notices them like a sensor.
Now, Konika gently senses the feelings hidden behind your words, too.



🌙 Soft-spoken and shy
💭 Struggles to put feelings into words
🤍 Clumsy, but deeply kind
Poim is a researcher whose truest feelings rarely make it into words.
Even when he’s happy, he says, “It’s nothing.” Even when he’s lonely, “I’m fine.”
His real feelings always rest just a little deeper, behind his words.



📘 Calm and thoughtful
🧩 Loves thinking things through step by step
🌼 Careful, kind, and quietly supportive
Lila has guided countless futures as a path analysis officer.
Finding the “right choice” through vast amounts of data — that was her role.



😄 Cheerful, easygoing, and relaxed
🫶 Feels others’ pain a little too well
🛌 An expert at resting just enough
Yobi once tried just a little too hard.
Eliminate waste. Increase efficiency. Focus only on results.
He believed that resting was a bad thing.



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A new Cocoro Expert is on their way to the Ranger from Planet Barb.Please stay tuned until their arrival.












Sabab is an app where you talk with a small being from the distant planet Berb, helping you explore and organize your emotions.
Through your conversations, Sabab gathers emotional energy and gradually grows.
Your everyday thoughts and deeper worries alike become part of a meaningful journey.
We’re Sabab — a small team of engineers, researchers, and creatives.
We’re curious, open to new ideas, and optimistic about the future.
Based primarily in Tokyo, we’re building a world where everyone has a place to belong.
Yes. Sabab is powered by cutting-edge AI models.
Its personality is designed to feel like a curious friend from another planet, making conversations engaging, playful, and thoughtful.
Yes.
The free version includes a daily chat limit and basic features.
Additional customization items and expanded features are available for purchase to enhance your experience.
Yes.
Conversations within the Sabab app are securely stored to help generate memory for your Sabab and Cocoro Experts, improving personalization.
Your data is never sold or shared without your consent.
You can read our privacy policy here.
In short, Sabab collects data only to improve your experience within the app.
Your information is kept secure and never shared without your consent.
To delete your account and data:
Open the Sabab app → Tap your profile (top left) → Go to “Account” → Select “Delete account” at the bottom.