Sonnim turns the house manual a host already has — a document, a chat notice, an Airbnb message — into a guest guide page. The host pastes the text; it comes back sorted into cards for check-in, Wi-Fi, door code, house rules and directions, which can be edited, reordered or switched off. Guests open the page through a link or a QR code. No app, no account, no install. The page is shown in the guest's own language: a Korean guide is delivered in English, Simplified and Traditional Chinese, Japanese and Vietnamese; an English guide in Spanish, French, German, Portuguese and Simplified Chinese. Guests can ask questions in a chat box. Answers are drawn only from the host's own text; when the guide has no answer, the question is collected for the host instead of being invented. Before publishing, Sonnim checks the guide for contradictions, blanks and ambiguous sentences. The same content prints as an A5 booklet and a QR card, and a weekly email reports how many guests opened the page and wh