HEERTI - Private Fan Chat
Invite-only creator chat rooms
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
A private chat room that only fans invited by a creator can join. Get your creator's messages, letters and live schedules in one place.
HEERTI is a private chat app that only fans invited by a creator can join.
Hear from your favorite creator up close, and send your love right back.
■ Invite-only
• Apply with the invite code your creator shares. Once the creator approves, you're in the room.
• No strangers outside the room can contact you. Members can't see each other's messages or contact details.
■ Conversations with your creator
• Messages your creator sends to everyone and private messages sent just to you arrive in one place. Private messages are clearly marked.
• Share photos, videos and voice messages.
• Send hearts to the messages you love.
■ Read in your language
• The app is available in Korean, English, Chinese (Simplified and Traditional) and Japanese.
• Translate a message into your language right on your device, or turn on auto-translate (iOS 18 or later).
■ Letters
• Letters your creator writes to you arrive in your mailbox. They stay there even if you change phones.
• You can reply to the letters you receive.
■ Schedules, D-days and polls
• Check your creator's lives and fan meetings on the room calendar.
• Upcoming events show as D-days at the top of the chat room.
• Vote in polls your creator opens in the room.
■ For creators
• Send to the whole room, or pick one member and send a private message.
• Review join requests and approve or decline them. You'll get a notification when a new request arrives.
• Run your room with notices, schedules, welcome messages for new members and short notes for each member.
■ Safety
• Lock the app with a PIN, and unlock it with Face ID or Touch ID.
• Choose in the Me tab whether notifications show the sender and message content.
• Our servers keep messages, photos, videos and voice messages for only 30 days. Conversations you receive are kept on your device.
• Report inappropriate messages, and our team will review them and take action.
• Location data is removed from photos and videos before they're saved.
■ Good to know
• You must be 14 or older to join.
• Sign in with email verification. There's no password to create.
• Use the same account on iPad and in a web browser (heerti.sonse.kr/app).
Contact: qna@sonse.kr
more Meet the new HEERTI.
• Help chat works like a chat room: photos, videos, files, voice and search
• Link previews in chats (turn off in My > Display)
• Schedule letters; edit or cancel before they go
• Letter replies can include images and voice
• Silent send stays on when you reopen a room
• "Recent" emoticons next to the room's set
• The date shows at the top while you scroll
• Creators can cancel creator registration and become a member; deleting an account or canceling asks for an email code
1.29 21h ago
Meet the new HEERTI.
• HEERTI Radio chat: talk anonymously during a live — replays show it like subtitles
• Set a nickname and photo just for one chat room
• Creators can add a whole week of events at once
• Drag a voice message's bar to listen from any point
• Tapping a notification opens its chat room; the Subscriber-only chat clears its notifications
• Sending while reading older messages keeps your place
• Fixed editing replies, the "+" menu on some devices and Subscriber-only chat replays
1.28 2d ago
Meet the new HEERTI.
• New Office mode in Me > Display — hearts show as numbers only, and profile and chat room background photos are hidden
• Write a letter right from a creator's or member's profile
• Creators can view a member's conversation from the member list or the member's profile
• Even when a creator closes the Subscriber-only chat, subscribers can still read past messages
• HEERTI Radio broadcasts can now run up to 6 hours
• Auto hearts only go out while you're viewing the chat room
1.27 4d ago
Meet the new HEERTI.
• "Cancel" and "OK" in confirmation dialogs now sit side by side on one line
• Fixed the letter voice recorder breaking the screen and hiding the "Stop recording" button
• A room whose join request wasn't approved disappears from your chat list once you've seen it
• Tidied the buttons for creators' invite links and the chat room background settings onto one line
1.26 Oct 26
Meet the new HEERTI.
• Send silently has moved into the + menu — while it's on, a bell shows by the input box; tap it to turn off
• Messages sent silently show a muted bell in front of the bubble
1.25 Oct 24
Meet the new HEERTI.
• Add a voice recording to letters — in creators' letters and in letters members write first
• Creators can see the note a member left when joining, right from the member list
• New for creators: the Member message sharing pass — buy it in the Point shop to show members' messages to the whole room without who sent them. Auto-renew and gifts from members work too
• If some of the photos you picked can't be read, they're left out and you'll be told
1.24 Oct 24
Meet the new HEERTI.
• Send without notifying — turn on the bell by the input box
• The chat list shows a separate count for the subscriber-only chat
• Creator chat now has "You've read up to here" and Jump to latest
• Creators can mute their own room, and the Auto heart pass works there too
• Photo previews before sending are no longer cropped, and you can retry loading older messages
• Fixed messages going missing when restoring a chat backup from an older version
1.23 Oct 23
Meet the new HEERTI.
• Point shop — buy and gift subscriptions and passes with points, including free points
• App font — download free fonts or load your own font file in Me › Display
• Creators can let members change their pick while a poll is open
• HEERTI Radio — see how loud your mic is, with a heads-up if it's too quiet
• Open settings right away even after denying microphone access
• Fixed sending several photos getting stuck, and the keyboard covering the input after picking a photo
1.22 Oct 22
Meet the new HEERTI.
• Point top-up — buy paid points in Me › Points
• Your points now sit at the top of the Me tab
• Creators: see removed members and unblock them, and save photos from fan letters
• Opening another chat from a notification now goes back to your chat list
• New messages no longer push away what you're reading in earlier messages
• Photo and video bubbles show at a comfortable size
• Sending an emoticon with text now sends the emoticon first, then the text
• Radio replays can be downloaded after agreeing not to share them
1.21 Oct 17
Meet the new HEERTI.
• A new app icon
• Add an image to each poll option
• Billboard requests can start within the next 3 months
• The subscriber count in the subscriber-only chat updates right away
• Start as a creator and open your room right after signing up
1.20 Oct 15
Meet the new HEERTI.
• The subscriber-only chat now has its own notices, events, polls, weekly schedule, chat rules, photos and settings — only inside that chat
• It shows conversations from when your subscription started (resubscribe within 30 days to continue)
• Pick an app font from your device's fonts in Me › Display › App font
• Gifts leave a note in the chat, and you can delete letters from your mailbox
• Fixed cropped photos and voice messages stopping while scrolling
1.19 Oct 15
Meet the new HEERTI.
• Subscriber-only chat — subscribers enter it with the button above the chat. Creators can turn it on or off
• Your chat list shows how many months you've subscribed, and creators can sort members by days subscribed
• Swiping a member's message left to share it with everyone now visibly slides it
• The creator chat hint now explains tap, long-press and swipe
• Fixed emoticons showing as blank and translations into other languages failing
1.18 Oct 14
Meet the new HEERTI.
• Subscriber-only chat — subscribers enter it with the button above the chat. Creators can turn it on or off
• Your chat list shows how many months you've subscribed, and creators can sort members by days subscribed
• Swiping a member's message left to share it with everyone now visibly slides it
• The creator chat hint now explains tap, long-press and swipe
• Fixed emoticons showing as blank and translations into other languages failing
1.17 Oct 14
Meet the new HEERTI.
• Auto-renew subscriptions and auto heart/backup passes with your points, with reminders and low-balance warnings
• Notifications now stack instead of showing only the latest
• Pin rooms to the top of your list and pick a sound for each room
• Theme backgrounds in each chat room, and text colors follow the theme
• Swipe down to close photos
• Creators can open a room with just a link to where they're active
• Fixed emoji that looked broken and the keyboard not closing
1.16 Oct 14
• Swipe from left to right in a chat room to go back to your chat list.
• Change the chat text color and transparency in chat room settings.
• Choose whether notifications show the sender and message in Me › Notifications.
• Creators can reply to letters from members.
• Creators who create their room on the web now see their chat right away in the app.
• Polished the chat rules window and unread counts.
• New 'Bubble opacity' in chat room settings — chat bubbles and profile photos fade together.
• Text opacity now applies to all text in a chat room, including names, times and quotes.
• The emoticon list now opens only as tall as it needs.
1.15 Oct 13
Simpler sign-up
• Just confirm you're 14 or older — no birth year needed.
• Got an invite? Sign up and send your request on one screen.
• Creators sign up first, then fill in the creator application.
• My › Account › 'My tickets & items' shows all your tickets at a glance.
• Creators can choose 'Noise reduction' when starting HEERTI Radio.
• HEERTI Radio reconnects on its own if the connection drops.
1.14 Oct 10
HEERTI Radio
• A creator's live now keeps going even when they leave the app.
• When a live ends, a replay appears in the chat room — play it right there, like a voice message.
1.13 Oct 9
Voice live is now called HEERTI Radio.
Fixes
• Fixed the live bar in chat rooms not showing the "Listen" button, so you couldn't listen to a live.
1.12 Oct 9
Creators can now go live with their voice.
• Voice live: when a creator goes live in a chat room, tap "Listen" on the live bar. It keeps playing even when you leave the app. Creators start from "Voice live" at the top of their chat.
• Replays: lives a creator chose to keep can be replayed or saved for 7 days from "Past lives" at the top of Photos & videos.
• Send files: choose "File" from the attachment menu in a chat room to send documents and many other file types. Up to 100MB; recipients can download them for 3 days. Photos, videos and audio you pick are sent in their own form.
• Start without an invite code: new users can sign up with just their email. To join a creator's room, request with an invite code as before.
• Save letter photos: if a letter has a photo, save it to your photo library with the button at the top of the letter.
• Save voice messages: press and hold a voice message and choose "Save to Files".
• Sort the chat list by latest message, name, or oldest message.
• Copy messages: press and hold a message and choose "Copy".
• Profile photo: after picking a photo, drag it and pinch or zoom to choose the part shown in the circle.
• Using the web and the app together: a chat room you're viewing on one device won't ring on your other devices, and notifications for a room you've opened are cleared on your other devices.
• Listen before sending: while recording, tap ■ to listen, then send or discard it. When a recording reaches 60 seconds, it stops so you can listen instead of sending right away. Creators can listen to the attached recording.
• Tap to reply: tap a message in a chat room to reply right away. Tapping a creator's reply takes you to the original message.
• Notification sound: in Me › Notification sound, you can use an audio file on your phone as this device's notification sound. Only the first 3 seconds play.
• If there's no profile photo, the first letter of the name is shown.
• Nicknames can now be just one character.
• Sending-to-all notice (for creators): if you go back to everyone after replying to one member, "Sending to everyone" appears above the message box.
Fixes
• Fixed chat room alerts not reaching your phone while that room was left open on a PC browser you weren't using.
• Fixed notifications for a chat room arriving while you were in that room.
• Fixed the message box cursor disappearing when you tapped a heart.
• After canceling a join request, you can request again with the same invite code.
• Fixed the last message being hidden when the keyboard opened or closed in a chat room.
• Before downloading a language file for translation, we now tell you its size and ask first.
• Removed the progress bar that flickered at the top every time you sent a message.
1.11 Oct 9
Staying logged in is now more reliable.
• Invite code expiry alerts (for creators): we'll let you know when an invite code you made expires. Codes that expire overnight are announced in the morning. Tap the alert to open the invite codes in Manage room.
Fixes
• Fixed an issue where reopening the app sometimes logged you out on all devices.
• If your login info on the device can't be read for a moment, the app now tries again instead of logging you out.
• Fixed being logged out while offline because of a PIN changed on another device.
1.10 Oct 7
Turning on Face ID or Touch ID is now easier.
• Unlock with Face ID or Touch ID: after you set or enter your PIN, we'll ask right away whether to unlock with Face ID or Touch ID from now on. You can change this anytime in Me › PIN.
• Show earlier messages to new members (for creators): under 'New members' in Chat room settings, choose whether newly joined members can see the messages you sent to everyone in the 30 days before they joined. It's on by default.
• You can now apply as a creator from the screen where you enter an invite code.
• {nickname} tip (for creators): when you close it, choose "Don't show again" or "Close".
Fixes
• Fixed the chat not scrolling all the way down when a new message arrives.
• Fixed Korean messages sometimes being detected as Chinese and translated.
1.9 Oct 7
Private-message-only notifications and jump-to-original replies are here.
• Private messages only: turn it on under 'Room notifications' in Chat room settings to be notified only of messages the Creator sent just to you (including personal replies). By default, you're notified of all messages.
• Tap a reply to jump to the original: tap the Creator's reply to go to the message it replied to. You can turn this off in Me › Display.
• Share photo albums (for creators): share a member's multi-photo album with everyone anonymously, kept as one album. The sender stays anonymous.
• Home billboard: each time you open Home, the next billboard image is shown.
Fixes
• Fixed billboard images appearing broken after the app was left open for a long time.
1.8 Oct 6
Chat rules and handle invite links are here.
• Chat rules: creators can write rules for their room in Chat room settings and choose when to show them again (only on first entry, some days after a member's last chat, or every few days). Members see the rules when they first enter the room and can view them anytime in Chat room settings. Rules can be translated on your device, too.
• Handle invite link (for creators): in Manage room › Invite codes, create an invite link with your handle. It has no limit on people or time within your room capacity, and you still approve everyone who joins.
Changes
• If you deleted your account and then restored it, you can reuse the invite code you first joined with, as long as it has uses left.
1.7 Oct 5
A billboard calendar and private memos on member profiles.
• Billboard calendar: when you request a billboard, the calendar shows how many billboards are up on each day. Pick a date to see how many others share the screen each day during your ticket.
• Member profiles (for creators): tap a member in a chat or in your member list to see their profile, and add or edit a private memo right there.
Fixes
• Fixed the bottom of the screen briefly turning white when opening a profile.
• Fixed profile photos showing up small in a corner. They now fill the screen.
• Fixed the creator chat title getting cut off in some languages.
1.6 Oct 5
HEERTI now speaks English, Chinese (Simplified and Traditional) and Japanese. It follows your phone's language, and you can change it under Me › Language.
• Translation: touch and hold a message and choose Translate to read it in your language. Turn on Auto-translate under Me › Language to translate messages as they arrive (iOS 18 or later, translated on your device).
• Notices are translated too, shown below the original.
• Profiles: tap the creator's name in a chat room to see their profile photo up close. Check the day you joined under Chat room settings › My info.
• GIFs and videos now appear in Photos & videos.
• A short guide shows you around the first time you open the app. See it again under Me › How to use.
1.5 Oct 5
Meet the new HEERTI.
• Help chat works like a chat room: photos, videos, files, voice and search
• Link previews in chats (turn off in My > Display)
• Schedule letters; edit or cancel before they go
• Letter replies can include images and voice
• Silent send stays on when you reopen a room
• "Recent" emoticons next to the room's set
• The date shows at the top while you scroll
• Creators can cancel creator registration and become a member; deleting an account or canceling asks for an email code
more Version 1.29 21h ago
Data Linked to You The following data may be collected and linked to your identity:
Purchases Contact Info User Content Identifiers Other Data