Echo: iOS SSH and mosh client built on Ghostty terminal.

What it does

Echo is a native SSH and mosh client for iOS and iPadOS. It provides terminal access to remote machines directly from iPhones and iPads using the Ghostty terminal engine. The app uses Metal-accelerated rendering, integrates with system Keychain for SSH keys, and supports Face ID authentication. On iPhone, it includes a customizable toolbar with terminal character shortcuts and gesture-based arrow key movement. On iPad, it supports hardware keyboards, Split View, Slide Over, and Stage Manager for running multiple sessions side by side.

Who it is for

The app targets developers who need to monitor and interact with remote machines and AI coding agents away from their desk. It is positioned for users running complex terminal user interface tools, AI coding agents, and build systems on remote servers. The iPad experience with hardware keyboard support suggests a secondary focus on developers who use tablets as semi-portable workstations.

Pricing

The site does not show prices.

How it stands out

Echo uses the open source Ghostty terminal engine rather than a generic or ported terminal emulator. The developers emphasize native platform integration: Metal rendering, native iOS Keychain support, Face ID, and touch-optimized interaction patterns on iPhone. The iPad implementation includes multi-window support and Stage Manager integration. The app was built specifically for iOS rather than adapted from another platform. It addresses a specific use case: developers who need to interact with AI agents and complex TUI tools remotely from mobile devices.

What a founder should check

A rival builder should verify whether existing SSH clients address the specific AI agent monitoring use case or if this remains unserved. The touchscreen keyboard experience and gesture interactions deserve testing against alternatives to understand switching costs—developers may prefer established tools despite UX differences. Finally, examine the moat: Ghostty's open source engine is available to competitors, so the defensibility depends on UI design, native platform features, and developer preference for performance and aesthetics rather than proprietary technology.

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