Hi Jisoo Is Here: Everyday Chats With a Korean Female Friend, Now on iPhone and Android

What is Hi Jisoo?

Hi Jisoo is a chat app where you talk in Korean with five fictional adult AI friends. Not a tutor, not a translator, not a customer-service bot. A friend who asks whether you have eaten, laughs at your commute story and remembers the interview you mentioned on Monday. The app screens come in English, Korean, Japanese, Simplified Chinese and Traditional Chinese; the conversation itself always stays in Korean.

What makes her sound like a real Korean friend?

Most AI chats sound polite, complete and a little bit like an email. Real Korean friends do not. They react first (헐, 대박, ㅋㅋ), drop the subject, split one thought into three short messages and speak at a level that matches the relationship. Hi Jisoo was shaped with additional training on real human conversation so that each friend replies in that everyday rhythm.

1. 나 오늘 회사에서 칭찬받았어I got praised at work today.
2. 헐 대박Whoa, amazing
3. 뭐 했는데? 자세히 말해 봐 ㅋㅋWhat did you do? Tell me everything lol

That is the experience we wanted: not a lesson about how Koreans talk, but the feeling of actually being in the chat. Want to see the difference spelled out? Read textbook Korean vs real talk.

Who are the five friends?

You can rename any of them. Each friend has an easy Korean option, and friends who start politely may, after a while, ask whether you would like to switch to casual speech: the Korean moment of 말 놓기. Meet them properly in Meet the Five.

What else do you get?

• She remembers, and you can check. See, edit or delete what a friend remembers, and see which memories a reply drew on.
• Talk your way. Ask her to just listen, give a short opinion or keep it serious. Say stop and she stops.
• Your chats live on your phone. Conversation history is stored in an encrypted database on your device, with encrypted backups you export yourself.
• Free preview scenes. Try 20 prepared scenes with the five friends before you even sign in.

How much does it cost?

No subscription and no ads. Sign up and you get 10 free stars, once. One star is used only when a reply actually reaches you; errors and retries are free. All five friends share one balance, and purchased stars do not expire. Check the packs and local prices in the app, and read why we chose stars.

How do I start?

1. Download Hi Jisoo from the App Store or Google Play.
2. Try a free preview scene, or sign up for your 10 free stars.
3. Pick the friend whose vibe you like, give her a name and send your first message in Korean.

Hi Jisoo is for adults 18+. Every friend is a fictional adult AI character; she will tell you honestly if you ask whether she is an AI. Replies are generated by AI and can occasionally be wrong or awkward, and she is not a replacement for professional advice or care.