Support

Write to support@getcay.app. You can write in English or Korean.

Before you write

Include these so we can help on the first reply:

your Cay version and macOS version;
what you did, what you expected, and what happened;
the agent and terminal involved, if the problem is about an agent;
the log file, ~/Library/Logs/day.junhan.cayapp/cay.log. It does not contain on-screen text, web addresses, license keys or secrets. Read it before you send it if you like.

Your license

Where is my key? In the receipt email from Lemon Squeezy, and on Lemon Squeezy's My Orders page. Sign in there with the email you used at checkout.
Activate: Settings › License, paste the key, choose Activate.
How many Macs? 3 at the same time.
New Mac: on the old Mac, choose Settings › License › Deactivate this Mac. Then activate the new one. If the old Mac is gone, write to us and we will reset your activations.
Offline: Pro keeps working for 30 days after the last successful license check. After that, connect once so Cay can check again.

Refunds

Within 14 days of purchase, for any reason. Send your order number, or the email you used at checkout, to support@getcay.app. The refund goes back to your original payment method through Lemon Squeezy, and the license key stops working.

Permissions

Cay needs Screen Recording to capture. It asks for the other permissions the first time you use a feature that needs them.

If this happens	Check this
Captures are blank or show only the wallpaper	System Settings › Privacy & Security › Screen Recording (on macOS 15 and later: Screen & System Audio Recording). Turn Cay on, then quit and reopen Cay.
Pasting into the front app or scrolling during a scrolling capture does nothing	System Settings › Privacy & Security › Accessibility. Turn Cay on.
A capture does not reach an agent in iTerm2 or Terminal	System Settings › Privacy & Security › Automation. Under Cay, allow iTerm2 or Terminal.
A recording has no microphone sound	Turn the microphone on for that recording, and allow Cay under Microphone in System Settings › Privacy & Security.

Connecting an agent

Cay works with Claude Code, Codex CLI and other agents that speak MCP, through the helper inside the app. Settings › Agents has a copy button for each command, and a Revoke button for each agent you allowed. You can also run:

# Claude Code
claude mcp add --scope user cay -- "/Applications/Cay.app/Contents/Helpers/cay-mcp"

# Codex CLI
codex mcp add cay -- "/Applications/Cay.app/Contents/Helpers/cay-mcp"

If an agent says Cay isn't running, open Cay and try again.

Removing Cay

If you have Pro, choose Settings › License › Deactivate this Mac.
Quit Cay from the menu bar and move Cay from Applications to the Trash.
To delete its data, remove ~/Pictures/Cay Captures/ (or the library folder you chose), ~/Library/Application Support/day.junhan.cayapp/, ~/Library/Caches/day.junhan.cayapp/ and ~/Library/Logs/day.junhan.cayapp/.
In Keychain Access, search for “day.junhan.cayapp” to find the license and trial items.
If you connected an agent, remove its cay entry. For Claude Code: claude mcp remove cay. For Codex CLI: delete [mcp_servers.cay] from ~/.codex/config.toml.