GateShell vs Codable

GateShell is an SSH, Mosh, and SFTP client, and a full server command center. Your servers, your keys, your device, nothing in between. No backend, no relays, no tracking. PRIVATE BY DESIGN • Zero backend. GateShell runs entirely on-device. There's no server to breach because there is no server. • Credentials live in the hardware-encrypted Apple Keychain, or on Secure Enclave keys that never leave your device, not even as an export. • No analytics, no telemetry. We don't know who you are or what you connect to. CONNECT, AND STAY CONNECTED • Native Mosh, with encrypted UDP and predictive local echo. Change networks, close the lid, come back hours later: your session is still there. • Jump hosts reach private servers through a bastion, with per-hop auth and host-key checks. • Import your ~/.ssh/config, or bulk-import servers from CSV. • SSH, Mosh, and Telnet, with automatic SSH fallback when UDP is blocked. SECURE CONNECTIONS • Verified host keys, pinned per server, with a warning the instant one changes. • Generate ed25519, P-256, RSA, or Secure Enclave hardware-backed keys, or import a PuTTY .ppk, including Argon2-encrypted ones. • Security Assistant scans for missing updates, exposed listeners, weak SSH policy, firewall gaps, and expiring certificates. Every finding shows its evidence, and guided fixes run allow-listed commands only after you approve them. • Face ID / Touch ID lock keeps your servers safe even if your device isn't. A REAL TERMINAL • Full XTerm-256 color terminal with fullscreen, scrollback search, and a customizable toolbar. • Two- and four-pane terminals with optional input broadcast. • 32 themes, bundled Nerd Fonts, custom font import, and named keyboard layouts. • Command snippets with ${VAR} prompts, run across many hosts at once. MANAGE THE WHOLE SERVER • 20+ built-in dashboards: Docker, PostgreSQL, MySQL, MongoDB, Redis, Nginx, Caddy, Traefik, Firewall, Cron, PM2, WireGuard, Fail2Ban and more. Each one shows the status and acts on it. • Fleet broadcasts one command to every server at once. • Live health monitoring with restart, logs, and failure alerts. • Install the optional open-source agent on your own server for metric history and push alerts when a service drops, a disk fills, or a cron job fails. It runs on your box, not ours. FILES & CODE • Upload and download over SFTP with progress tracking and background retry. • Show your servers in the Files app, and open remote files like local ones. • Built-in editor with syntax highlighting and find/replace for 13+ languages. • Git on the go: status, stage, commit, and review diffs. • App Preview opens your dev server right in the app, tunneled over your existing SSH connection. BRING YOUR OWN CODING AGENT • Start, resume, and interrupt Claude Code, Codex, or Gemini CLI in any project on your server, straight from the terminal. • It runs under your account, with your CLI. GateShell never proxies it and never sees your provider keys. AI THAT STAYS ON THE DEVICE • Describe what you want in plain English, and GateShell composes the command on-device via Apple Intelligence. • Long output gets an instant, structured summary with error and warning counts. • A multi-step agent proposes a plan and runs it, with your approval on every step. • Automatic secret redaction and a risk warning before dangerous commands run. AT A GLANCE • Home Screen and Lock Screen widgets for quick connect, server health, and your last session, plus a Live Activity that tracks the connection you're on. SYNC EVERYWHERE • iCloud syncs your servers, snippets, and known hosts across iPhone, iPad, and Mac, end-to-end encrypted. Free to start. Pro unlocks unlimited servers, SFTP, Mosh, port forwarding, the full dashboard suite, and more. On-device AI features require a device that supports Apple Intelligence. Terms of Use: https://gateshell.com/terms Privacy Policy: https://gateshell.com/privacy

Codable turns programming practice into a habit. Solve focused challenges in ten languages — from your first data structure to lock-free concurrency — and build real fluency one problem at a time. WRITE REAL CODE IN 10 LANGUAGES C, C++, C#, Go, Java, JavaScript, Python, Rust, Swift, and TypeScript. Switch languages anytime — solve the same challenge in Python today and Rust tomorrow. GO DEEPER THAN SYNTAX Challenges span the topics that actually make you a better engineer: • Fundamentals and string manipulation • Data structures and algorithms • Recursion and functional programming • Object-oriented design and generics • Error handling, concurrency, and memory management BUILT FOR EVERY STAGE New to programming? Start with fundamentals and level up steadily. Experienced? Jump straight into concurrency, memory management, and the problems that show up in technical interviews. PRACTICE THAT STICKS Short, focused challenges designed to fit into a daily routine — because fluency comes from reps, not marathons. Download Codable and start mastering your chosen language!