Clonk
T3 CodeAgent control plane vs all-in-one AI workspace
T3 Code is a free, open-source control plane for coding agents with desktop, web, iPhone, and Android clients. Clonk is a Mac command centre that also shows the running product — live localhost previews and an embedded iOS simulator — with an end-to-end encrypted phone link and shipping tools.
Head-to-head
T3 Code is a genuinely open, well-built control surface for agent chats, and it runs on every platform. Clonk is Mac-first and goes further around the agent: it shows the running product, streams the iOS simulator to your phone over an end-to-end encrypted link, keeps long jobs running on the Mac, and carries apps through to the App Store.
Where they differ
8 capabilities compared
Seeing the productClonk leadsRemote link privacyClonk leadsStaying awakeClonk leadsNative iOS workflowClonk leadsOpenness and priceT3 Code leadsClosely matched on 3 more: main workspace, ai providers, phone control.
Capability
Clonk
T3 Code
Clonk
Agents, previews, simulator, terminals, browsers, Git, devices, and shipping.
T3 Code
Chats, diffs, Git actions, and permissions for agents running on your machine.
Clonk
Watch localhost and the embedded simulator beside the chat, on Mac and iPhone.
T3 Code
No localhost preview or simulator streaming appears in its public materials today.
Clonk
Claude, Codex, Cursor, Kimi, Grok, and others side by side.
T3 Code
Claude Code, Codex, OpenCode, Cursor, and Grok, with more planned.
Clonk
Run, steer, review, use Git, terminals, previews, and the simulator from iPhone.
T3 Code
iPhone and Android apps mirror the same server as desktop and web.
Clonk
Only your Mac and phone can read the traffic; the relay moves ciphertext.
T3 Code
Traffic is encrypted in transit but readable at the relay; self-hosting is the way around it.
Clonk
Agents keep running with sleep prevention during long work.
T3 Code
The repository documents background service support for Linux; elsewhere work runs with the app.
Clonk
Embedded simulator, element comments, build-to-preview, and publishing preflight.
T3 Code
Agents can edit Swift projects; simulator and store tooling stay outside.
Clonk
Free to start with Pro features; not open source.
T3 Code
The whole monorepo is open and designed to be forked.
How to choose
Looking to switch?
Read the T3 Code alternative guide.
Questions people ask
Yes. Both let you run and remote-control coding agents from your computer and phone. T3 Code focuses on the agent conversation; Clonk also shows the running product — localhost previews and an embedded iOS simulator — and adds publishing, Goals, voice, and multiplayer on top.
Not today. Its clients render agent chats, diffs, and Git actions, and its public materials do not mention localhost previews or simulator streaming. Clonk streams live web previews and the embedded iPhone simulator to the Mac workspace and to the phone companion.
Clonk's Mac-to-phone link is end-to-end encrypted, so the relay only carries ciphertext. T3 Code's clients connect through a hosted relay that terminates TLS, so relay infrastructure can technically read session traffic — though because it is open source, you can self-host the server yourself.
Clonk capabilities come from the current product feature inventory. T3 Code claims are limited to the official public sources below. Product capabilities change; verify a deciding detail before purchasing.
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