Show HN: Echo, a new SSH client for iOS built on Ghostty (replay.software)

Echo, a new SSH client for iOS and iPadOS, has been launched by Replay, marking their first venture into mobile applications. Built on the Ghostty terminal engine, Echo takes advantage of the rising complexity and interactivity of terminal-based user interfaces (TUIs) that are increasingly prominent in the development landscape. The app is designed to facilitate seamless interaction with AI coding agents like Claude Code and Codex, allowing developers to manage remote machines and review coding changes from anywhere. Significantly, Echo incorporates native features including Metal-accelerated rendering, Keychain integration for secure SSH key management, and Face ID functionality, delivering a performance-optimized experience tailored for mobile users. The app offers a refined keyboard experience with custom shortcuts and gesture controls on iPhone, while the iPad version provides full keyboard support and multitasking features, elevating it to a powerful development tool. Available for a one-time purchase of $2.99, Echo aims to empower developers to engage with their coding environments and AI assistants in a more dynamic and accessible manner, embodying a shift in how terminal work is approached in the mobile era.