Requesting access stores your name, email, anything you write in the note field, and your IP. Signing in sets two cookies — your operator id, and a device id that guards against key sharing — and records each browser's IP and country. Chats and searches are logged for troubleshooting and kept for 30 days; your messages are also sent to Google's Gemini API, which generates the replies. What you do in the world stays part of the world, including what characters remember about you. Write to info@weltlinie.com for a copy of your data, or to delete your account and the records keyed to it.