Echo is the ultimate, natively-built iOS client for tuning into remote radio servers. Listen to anything, from anywhere. Dive into international shortwave broadcasts from Asia, monitor aviation communications over the Atlantic, discover mysterious numbers stations, or tune into distant FM stations across the globe, all from your iPhone or iPad. As featured on RTL-SDR.com: "Designed to make it easy to search for and view public receivers on iOS." Designed for radio enthusiasts and curious liste...