Codable vs iVerb

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!

Your coding assistants run on your machines. Follow their work from your iPhone or iPad. iVerb is an SSH terminal and companion for remote development. Connect to your own Mac, Linux host, or WSL environment to read conversations, review code changes, reply to tasks, and use a real terminal. Works with Claude Code, Codex CLI, OpenCode, and DeepSeek Harness running on your own server. Available interactions depend on the CLI and supported transcript formats. CONVERSATIONS AND PROJECTS • Read project conversations, code diffs, and tool activity • Swipe to quote messages and add images from Photos or the clipboard • Preview remote images, text, code, and Markdown through links in project chats • Review recognized collaborating agents, work rounds, results, and separate conversations • Keep editable project to-dos on your device A TERMINAL FOR YOUR PHONE • Connect over SSH to home, office, or cloud hosts • Use Zellij or tmux sessions with terminal function keys • Customize shortcut order and preview terminal themes • CJK input, Dynamic Type, and accessibility support NOTIFICATIONS AND ACTIONS • Receive task-completion and input-needed alerts • Reply or use quick actions for compatible tasks • Optional encrypted hosted push relay access is included with Pro CONNECTIONS AND DATA • You choose the hosts; connection credentials are stored in the device Keychain • SSH encrypts transfers; conversation caches and app to-dos are stored locally • Images you choose to attach are uploaded to your configured server • iVerb does not provide a VPN or an AI model service. Use a network path or networking tools that can reach your host START FREE, UPGRADE WHEN YOU NEED MORE • Try the built-in demo without a server • iVerb Pro is a one-time purchase for additional servers and projects, fonts, Live Activity, the hosted push relay, and alternate icons • No subscriptions. Tips are optional Full remote functionality requires an accessible SSH host and the relevant command-line tools.