Mochi vs Codable

Mochi is the place to control your AI coding agents from your iPhone. The agents run in herdr on your server. Mochi shows what each one is doing and takes you to it when it needs you. CONTROL YOUR AGENTS WITH HERDR • Live Activity on the lock screen: which agents are working and which are waiting for you • A notification when an agent is blocked or done, even when Mochi is closed • Tap it to open that agent's pane and answer from the chat input • Swipe to switch herdr tabs A REAL TERMINAL UNDERNEATH Mochi is a fast, beautiful SSH client built on the Ghostty terminal engine — a real terminal emulator in your pocket, not a toy. SSH INTO ANY SERVER Save your connections and jump into any of them in a tap. Password and key auth, custom ports, works great over Tailscale. FIRE COMMANDS IN ONE TAP Build your own shortcut groups: tmux prefixes, Ctrl combos, slash commands, whole snippets with Enter. The keyboard toolbar puts esc, tab, ctrl and ⌘ right above the keys — no more fighting the mobile keyboard. MAKE IT YOURS 500+ built-in terminal themes with search and light/dark filters. Real monospace fonts (JetBrains Mono and more), adjustable size, pinch to zoom in session. LOCK KEYS BEHIND FACE ID Private keys live in the iOS Keychain. Flip one switch and every use of a key requires Face ID. BUILT FOR ENGINEERS • Ghostty-powered terminal emulation — fast, correct, modern • Multiple simultaneous sessions • Native iOS design that feels at home on iOS 26 • No accounts, no tracking — your servers are your business

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!