Stash is the best choice for Clash rules on iOS! Full adaptation of Clash Premium configuration.  Stash is a rule-based proxy client with multiple proxy protocol support. Support for Rule Set, JavaScript, HTTP Rewriting, MitM, SSID Policy Groups, On-Demand Connections and other new features. - Handle TCP / UDP / ICMP traffic and forward to any proxy server - Route traffic to different endpoint by rule of domain, IP-CIDR, or User-Agent - Support DNS over TCP / DNS over TLS / DNS over HTTPS - Native UI dashboard to display HTTP / HTTPS / TCP request - Support for Rewriting HTTP(S) requests using JavaScript - Decrypt HTTPS traffic with Man-in-the-Middle - Support for URL Rewrite - Fully IPv6 supports - Builtin DNS server with hostname mapping - Support for overriding some of the settings of the current configuration file using Override