Create your own day with your AI assistant.

Latest Version

Version
Update
Oct 22, 2025
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Google Play ID
Installs
500+

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사이 - 최애가 해주는 일정 관리 APP

From empathetic characters to quirky tsunderes,
to characters that resemble your own dog and cat.
Leave the tedious task of managing your calendar to an AI assistant.

Because an AI assistant that's the same for everyone is boring.

'Sai' is a new level of scheduling service where your chosen AI assistant takes care of your schedule, to-dos, and even your daily life.

This is how 'Sai' shares your day. 👀

🙌 Assistants with diverse personalities and backgrounds are waiting to be hired.
Enjoy more immersive conversations with a variety of emotional expressions.
Even your assistant's outfit changes depending on day and night, work and rest!

💬 With Sai, managing your schedule is a snap.
Discuss your schedule as if you were having a conversation.
Your assistant understands your details and organizes and manages your schedule for you.

☀️ Good morning! Your daily schedule taken care of by your secretary
The secretary you choose will keep track of your schedule with a unique voice.
You'll never miss an important appointment or be bothered by notifications.

💌 This isn't just an AI that simply answers.
Sai's secretary remembers your conversations.
It'll even send you a pre-message about yesterday and ask how you're doing.

💙 I'll be your competent secretary and your most comfortable friend.
Speak to me anytime after a tough day or when you need a little comfort.
I'll be there to listen to your story.

From busy work to the small details of everyday life.
Meet your first AI assistant with Sai.
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