Try composing a message
Pick a demo board, edit the sample text, and see how it lays into the grid. Sign in with Apple only when you are ready to send to a real board.
Grid layout preview — no message is sent until you sign in and choose a board.
Sign in to send
Your draft is saved in this browser session across sign-in.
Ready to send
You are signed in. Continue to Send To and pick a board — your draft will be waiting.