First, switch to US App Store
Open App Store, Log out your own Apple ID and Login with shared Apple ID.
Find more after registering or login
免费注册/登录第二步：下载ZionLadder并登录使用
1. You can search by yourself, Search with keyword Zionladder, make sure the result is ZionLadder VPN
2. Install and open the app, use your account to login. Allow the app to config VPN
3. 在应用界面选择合适的线路和分流方式(推荐启用智能分流), 点击即可开启连接
Register