注：IOS用户请使用Safari浏览器打开本地址，点IOS按钮，将在手机后台自动安装App，安装之后在手机设置-通用-描述文件与设备管理的点击企业级应用，信任SGS Group Management SA证书即可

Remark: iOS user please access the page in Safari and click IOS button to install the App. After install successfully, please click Settings->General->Profiles & Device Management->SGS Group Management SA and select to trust it.