Everywhere is an iOS VPN/proxy client that lets users choose between three open-source proxy cores—Xray, sing-box, and mihomo—to route device traffic through custom configurations. The app uses Apple's Network Extension framework (NEPacketTunnelProvider) to establish a VPN tunnel, with the selected core executed inside the tunnel process. Configurations can be imported, subscribed to, or edited directly within a SwiftUI interface, and a bundled web dashboard (zashboard) provides real-time monitoring and control via the Clash API.