Agent Tools / Stillchat
Free tools

Stillchat

Stillchat is a free iPhone and iPad app that controls the AI coding agents on your own Mac. Pair once by QR code, then approve, reject and steer each agent from your phone. Your code and your sign-ins stay on the Mac.

What it does

  • Run stillchat-runner pair on the Mac and scan the QR code. The code works once and for 10 minutes.
  • You use the subscriptions you already have. Claude Code and Codex use the account their own CLI is signed in to. ChatGPT uses your OpenAI account, and OpenRouter uses your OpenRouter key, which also serves Grok.
  • When a Claude Code agent wants to write a file or run a command, the Inbox shows the diff or the command and waits for you to approve or reject it. Nothing changes on the Mac until you decide.
  • To steer a live run, type a line and the agent reads it before its next step. Stop ends the run at once.
  • Messages are end-to-end encrypted. Our relay only passes sealed messages it can't open, and it holds them for up to 7 days if the Mac is asleep.

Price

Stillchat is free: 0 USD, no account with us, no ads and no in-app purchase. The agents run on the plans you already pay for on your Mac. Our paid services, and what each one costs, are on the prices page.

What we measured

On 19 October 2026 we ran the runner against the real Claude Code CLI on a Mac, driven by a test phone client. A phone paired with the runner in 0.36 seconds. A file write reached the Inbox as a request 3.85 seconds after the run started, and rejecting it kept the file from being written. The iPhone app passed the same pairing check in the simulator, within 5 seconds.

Stillchat vs other phone controllers

Read on each product's own pages on 19 October 2026.

StillchatClaude Code Remote ControlHappyCodex in the ChatGPT app
PriceFreeNeeds a paid Claude plan, from 20 USD a monthFree, open sourcePreview on all ChatGPT plans, including Free
AgentsClaude Code, Codex, ChatGPT, OpenRouter (and Grok through it)Claude Code onlyClaude, Codex and GrokCodex and ChatGPT Work chats
Where code runsYour MacYour machineYour machineYour computer, or Codex Cloud
End-to-end encryption statedYesNot stated (TLS through the Anthropic API)YesNot stated (a secure relay)
Approve or reject from the phoneYes, with the diff or commandYesYesYes

Pick Stillchat if you use more than one agent and want one encrypted inbox for all of them. Pick Remote Control if you only use Claude Code and already pay for Claude. Sources: Claude Code Remote Control, Claude plans, Happy docs, Happy security, Codex on mobile, Codex remote connections, OpenAI announcement.

What you need

  • An iPhone or iPad with iOS 26 or later.
  • A Mac with the Stillchat runner installed and running.
  • At least one agent signed in on that Mac.

Stillchat is not on the App Store yet. This page will link the listing when Apple publishes it.

Frequently asked questions

What is Stillchat?

A free iPhone and iPad app that controls the AI coding agents on your own Mac: Claude Code, Codex, ChatGPT and OpenRouter. You approve, reject and steer them from your phone.

How much does Stillchat cost?

Nothing. It has no account, no ads and no in-app purchase. The agents use the subscriptions you already have on your Mac.

How do I pair my iPhone with my Mac?

Run stillchat-runner pair on the Mac. Scan the QR code with the iPhone Camera or with the scanner in Stillchat. The code works once and for 10 minutes.

Which agents and subscriptions can I use?

Claude Code and Codex with their own CLI sign-in, ChatGPT with your OpenAI account, and OpenRouter with your key, which also serves Grok. Every sign-in stays on your Mac.

Will an agent change my files without asking?

A Claude Code agent asks before it writes a file or runs a command, and waits in the Inbox for you to approve or reject. Codex runs read-only and changes nothing.

Can OpenKrill read my code or my prompts?

No. Messages between the phone and the Mac are end-to-end encrypted, and the relay only passes sealed messages. The Stillchat privacy page lists what leaves your devices.

What happens when my Mac is asleep or offline?

Messages wait in the relay for up to 7 days and arrive when the Mac is back. Check that stillchat-runner status says the runner is running.

How is Stillchat different from Claude Code Remote Control?

Remote Control works with Claude Code only and needs a paid Claude plan. Stillchat is free, works with four agent sources and states end-to-end encryption.

Where do I get Stillchat?

It's not on the App Store yet. This page will link the listing when Apple publishes it.

How do I get help or unpair?

To unpair, open the Mac tab and tap Unpair. The keys leave the phone and the relay drops the link. For help, see Stillchat support or email support@openkrill.app.

Agent Tools weekly: what we measured in the week's posts, and what you can try. At most one email a week.

You confirm by a link we email you. No tracking. Unsubscribe in one click. Past issues. Privacy.