BYOT Coding Agent vs Codetether

BYOT is a native client for OpenCode, the open-source coding agent. Connect to the OpenCode server running on your own computer and drive coding sessions from your iPhone or iPad. Browse projects and sessions, send prompts with photos or files, and watch assistant text, reasoning, and tool activity stream live. Inspect tool inputs, progress, output, and errors. Answer permission requests and questions from your server, queue follow-up prompts, and choose models from your server's catalog. Review session diffs when your server supports them. Switch between saved servers, group sessions by project or browse them in one list, and find sessions by title, project, or path. Unsent text and attachments stay on this iPhone across session changes and app relaunches. Choose System, Light, or Dark appearance. With the optional BYOT companion running on your computer, get notifications for approvals, questions, completed turns, and errors. Enable the computer queue to keep accepted prompts running in order while BYOT is closed. Your computer must remain awake and the companion connected. Work that has not finished uploading needs BYOT to reconnect; uncertain delivery requires your review. BYOT supports OpenCode 1 and OpenCode 2 beta servers with automatic protocol detection. Available features depend on the server version; some OpenCode 2 beta servers do not expose per-session diffs. Your server does the work. BYOT renders its responses and sends your instructions over HTTPS. There is no BYOT account or sign-up, and no tracking. Anonymous usage data is off until you turn it on, and it never includes your prompts, code, server addresses, or project names. Server passwords are stored in the iOS Keychain. In direct mode, prompts and attachments go to your configured server and the model providers you enable there. Optional notifications and the computer queue use the BYOT relay for device registration, delivery, and encrypted queued content. See the privacy policy for storage and retention details. Requires an OpenCode server you operate, reachable over HTTPS, for example through Tailscale. Notifications and the computer queue also require the BYOT companion. BYOT is an independent client and is not affiliated with the OpenCode project.

Codetether puts the opencode AI coding agent in your pocket. Run opencode on your computer, then follow the work from your phone: watch replies stream in, approve permissions, review diffs and send the next instruction from anywhere. Your code never leaves your machine. The app connects to your own opencode server — over your local network, Tailscale or an end-to-end encrypted relay — and no account is needed. WHAT YOU CAN DO • Follow sessions live: streaming replies, reasoning and tool calls • Approve or reject permissions from your phone, the lock screen or Apple Watch • Answer the agent's questions without leaving the app • Review every diff the agent produced, file by file, and revert changes • See what each session costs: usage by day, project and model • Live Activities and the Dynamic Island show every session at a glance • Browse and read your project files • Compose with @ files, / commands, ! shell and photo attachments • Keep several servers (LAN, Tailscale, relay) with automatic reconnect • Available in 33 languages SETUP On your computer, run: npx ocremote --pair A QR appears; scan it once and you are connected. Keep the terminal running while you work. No computer at hand? Tap “Try the demo” to explore the app with sample data — nothing is sent anywhere. opencode is an open source AI coding agent by its authors; this app is an independent client for it.