Hi Jisoo Blog

Everyday Korean, and the friends you practice it with

How Koreans actually talk and text, the culture around it, and plain-language notes on how our fictional Korean AI friends work.

• Korean practice · 7 min readHow to Practice Korean Conversation Without a Language PartnerNo Korean friend to text yet? A practical routine for everyday Korean conversation practice — what to say, how to handle 반말 and 존댓말, and where an AI friend fits.
• Inside Hi Jisoo · 5 min readMeet the Five: Which Korean AI Friend Fits Your Vibe?Calm, playful, candid, practical or warm — meet Hi Jisoo’s five fictional Korean friends, see how each replies to the same message, and pick who to talk to.
• Korean culture · 5 min readBanmal vs Jondaemal: When Do Korean Friends Drop Formal Speech?What 반말 and 존댓말 mean, who uses which, and how Korean friends decide to drop formal speech (말 놓기) — with phrases to suggest, accept or decline it.
• Korean practice · 4 min readHow Koreans Actually Text: ㅋㅋ, ㅎㅎ and the Art of Short RepliesWhat ㅋㅋ, ㅎㅎ, ㅠㅠ, ㅇㅇ and 헐 really mean, how many ㅋ is too many, and the unwritten rules of Korean texting — short replies, split messages and late answers.
• Korean culture · 5 min readGiving and Taking Compliments in Korean (Without Being Awkward)How to compliment someone in Korean, how Koreans usually respond, and the light flirting words you’ll hear — 설레다, 심쿵, 썸 — with ready-to-use phrases.
• Inside Hi Jisoo · 6 min readWhy Hi Jisoo Doesn’t Sound Like a ChatbotMost AI chats sound like customer service. Here’s how Hi Jisoo gives each Korean AI friend a personality, a daily life, a sense of time — and good manners.
• Inside Hi Jisoo · 5 min readAn AI Friend That Remembers — and Shows You What It RemembersHow memory works in Hi Jisoo: what your AI friend saves, why she needs your own words as evidence, and how to edit, delete or check what a reply drew on.
• Inside Hi Jisoo · 5 min readAI Friend or AI Girlfriend? What Hi Jisoo Is (and Isn’t)Looking for a Korean AI girlfriend app? An honest look at what Hi Jisoo is — an AI friend app for adults — what it won’t do, and how to judge any AI companion.
• Korean culture · 6 min readChuseok, Cherry Blossoms, First Snow: Seasonal Korean Small TalkThe Korean phrases friends use through the year — Chuseok greetings, cherry blossom plans, first-snow texts, ticketing nights and convenience-store runs.
• Privacy · 4 min readIs It Safe to Chat With an AI Friend? Where Your Messages GoWhat happens to your messages in an AI companion app? What Hi Jisoo keeps on your phone, what is sent to write each reply, and what you can delete.
• Korean practice · 5 min readAI Korean Tutor vs AI Korean Friend: Which Actually Gets You Talking?Korean tutor apps correct you; a Korean friend talks with you. An honest comparison of AI tutors, language exchange, chatbots and an AI friend for real conversation.
• Inside Hi Jisoo · 4 min readNo Subscription, No Ads: Why Hi Jisoo Uses Stars InsteadMany AI companion apps run on subscriptions, ads and guilt-trip upsells. Hi Jisoo uses stars instead: you pay only for replies that actually reach you.

Hi Jisoo is an AI friend app for adults 18+, in development for iPhone and Android. It isn’t available to download yet. Every friend is a fictional adult AI character.