This document is a reference translation automatically translated from the original Korean. If the meaning of the translation differs from the original, the Korean original shall prevail.
Last updated: 2026-09-21 (addition of notice on cross-border transfer of personal information and correction of the explanation of notification delivery; addition of open chat and room cover photo items and correction of AI provider information on 2026-09-20; first issued 2026-09-05) · This document is a draft based on a demo service and requires legal review before the official service launch. To register, you must agree to the Terms of Service and this policy.
| Item | When Collected | Storage Method |
|---|---|---|
| Username, password | Account registration | Password stored after hashing with scrypt (not stored in plaintext) |
| Email address | Account registration (for account recovery) | Stored with AES-256-GCM encryption + hash for lookup |
| Phone number | When the user directly links it (optional) | Stored with AES-256-GCM encryption + hash for lookup. Used to find friends from contacts and search by phone number (only when “Show in ID and phone number searches” is enabled and the full number matches) |
| Contacts (names and phone numbers) | When the user chooses to add them | Only selected items, stored encrypted. Compared with registered users using phone number hashes |
| Profile (name, photo, ID, language) | Onboarding and profile editing | Displayed to other users |
| Messages | During conversations | Stored on the server (end-to-end encryption is not applied). Required for server-side translation |
| Photos | When sending a photo in a chat room | Photos resized on the device are stored on the server. Viewable only by members of that chat room, automatically deleted after 7 days (deleted immediately if the chat room is deleted) |
| Original text of translation requests, translations, and translation feedback | When using server translation (not applicable to on-device translation) | Used to improve translation quality (building and reviewing frequently used expression dictionaries, terminology glossaries by field, and translation caches). This use is subject to Article 4 of the Terms of Service agreed to upon registration, and we endeavor to minimize information that can identify individuals |
| Market posts (title, price, description, transaction area, photo) | When posting on the used-goods market | Displayed to all logged-in members. Deleted immediately together with the photos when the post is deleted |
| Open chat profile (nickname and photo set separately for each room) | When entering or editing an open chat room (optional) | Displayed only within that room; real name and ID are not visible to other participants. They remain in previous conversations after leaving the room but are deleted upon account deletion (previous conversations display the user as “Deleted user”) |
| Open chat room information (name, introduction, “This room’s rules,” category, area, language) and entry password | When the room owner creates or edits the room | Anyone may search for and view this information (rooms excluded from search are accessible to people who know the link). The entry password is stored after hashing with scrypt (not stored in plaintext) |
| Open chat room cover photo | When uploaded directly by the room owner (optional) | On the device, cropped to a 4:5 ratio based on the center and resized, then stored after the server removes metadata attached to the photo, such as the shooting location (EXIF). Visible in search listings, room previews, and shared-link previews to anyone, including people who are not logged in. Automatically checked for inappropriate content when uploaded (Section 4), and photos not attached to a room are deleted after approximately 1 hour. When the photo is replaced or removed, the previous photo is deleted; photos removed following a report are isolated for operator review, retained for up to 30 days, and then deleted; deleted when the room owner deletes their account |
| Report details | When a report is submitted | Viewable only by operators |
| Access IP address | Upon registration and access | Used only in memory for rate limiting to prevent registration abuse; not stored |
When you delete your account, account information (username, email address, phone number, profile, contacts, and friend relationships) is deleted immediately, while messages already sent remain with conversation partners in anonymized form as “Deleted user.” Nicknames and photos set separately for each open chat room, as well as cover photos uploaded to rooms where you are the owner, are also deleted, and the room is taken over by the longest-standing remaining participant.
For message translation and translation verification, message content may be transmitted to AI translation engines. We currently use OpenAI’s services, but depending on operating circumstances, they may be replaced by or used together with other AI providers such as Google (Gemini) or Anthropic (Claude). When using on-device translation, message content does not leave the server. When a photo is uploaded as an open chat room cover, one copy of that photo (with metadata such as the shooting location removed) is transmitted to OpenAI’s content moderation service for automatic checking for inappropriate content; if the photo fails or cannot undergo the check, it will not be registered. On devices with new message notifications enabled, encrypted notifications (the sender’s name and the beginning of the message) are delivered through the browser provider’s push service (Google, Apple, Mozilla, or Microsoft), and on iPhone apps the same content is delivered through Apple Push Notification service (APNs) (these notifications pass through Apple’s servers). No other provision to third parties takes place (see Section 4-2 below for server hosting and overseas providers).
Because the service uses the overseas servers and services of the providers below, personal information is transmitted to and stored outside the Republic of Korea during use. If you do not wish to have your information transferred overseas, do not register or delete your account through More → Delete account (the service cannot be provided without cross-border transfers because servers and translation are processed overseas). On devices that support on-device translation, you can use it so that message content is not transmitted to AI providers (server storage remains unchanged).
The timing of transfers is each time the above functions are performed while the service is being used. If the recipients, items, or purposes of transfer change, this policy will be amended and notified.
You may modify your information or disconnect your phone number at any time through More → Edit my profile in the app, and you may delete your account through More → Delete account (for detailed procedures, see Account deletion instructions). You may change your name and photo at any time through profile editing, but your ID cannot be changed once set. The open chat room cover photo may be changed or removed at any time by the room owner through room customization, and inappropriate photos uploaded by others may be reported through the room menu’s Report (inappropriate photo), after which they may be removed immediately.
If you do not wish to receive messages from another user, you may block that user from their profile. Blocking does not notify the other person, and you may unblock them at any time through More → Blocked users. When new message notifications are enabled, this device’s browser push subscription information (the push service address and encryption key) or the iPhone app’s APNs device token is stored on the server and deleted when notifications are disabled, you log out, or you delete your account.