Privacy Policy
Effective October 1, 2026 · Island Trade Routes (群岛商路：远航之约)
Who we are and what this covers
Island Trade Routes is developed and operated by Yujie Liu. This policy describes how the iOS game and these two game information pages handle information. The wider YJ Game portal has separate account and game services; the Island Trade Routes app does not connect to those services.
Game data on your device
The game stores match saves, story progress, preferences, and pending achievement identifiers on your device. The game has no developer-operated account or cloud-save service, and does not upload these saves to our servers. The app and Safari keep separate saves; installing the app does not copy a browser save into it.
Apple Game Center
If you use Game Center, the app uses Apple's GameKit to authenticate your Game Center account and report earned achievement identifiers and completion to Apple. If reporting fails, an achievement identifier remains on your device until it can be retried. You can play without a Game Center sign-in. Game Center achievements are not a backup of your match or story saves. Apple's handling of Game Center information is governed by Apple's privacy policy.
Purchase and payments
The iOS app is planned as a one-time paid download through Apple's App Store. Apple processes the purchase. We do not receive your payment card details from the app. The game does not currently include advertisements or in-app purchases.
These website pages
The game information and privacy pages are hosted on Vercel. They do not ask you to sign in or send gameplay data to the YJ Game portal. If you switch the page language, that choice is stored in your browser's local storage. The hosting provider may process technical request information needed to serve these pages under its own privacy policy.
Support emails
If you email us for support, we use the address and information you provide to respond and handle your request. Please do not include passwords, verification codes, or payment card information. You may ask us to delete your support correspondence by emailing the address below.
Your choices and deletion
You may play without a Game Center sign-in. Deleting the app removes its local game data from the device; normal app updates keep it. You can clear this site's language choice in your browser settings. Apple controls Game Center information and App Store purchase records; manage those through your Apple account.
Children and changes
The game does not ask players to provide their name, age, or contact details. Please contact us if you have questions about a child's use of the game. If our data practices change, we will update this page and its effective date.
Contact
Developer: Yujie Liu