Open any listing and tap Message seller. You will be asked to sign in with a free account first (magic link or Google and X). Messages route through Jinu, so the seller's real email stays private. Most sellers reply within 2 hours.

Run any search and tap Save search. We email you when new matching listings appear. Manage or unsubscribe at Search alerts, or use the master switch in Settings, Notifications.

Tap a seller's name on any listing to open their public profile: display name, avatar, how long they have been on Jinu, and their other active listings. You can turn your own public profile on or off at Settings → Marketplace. We never show real names or contact details unless you set them yourself.

Yes, unless the seller marked the price firm. Send a polite, specific message (“Would you take $40 cash today?”). Sellers respond best to clear, concrete offers. We do not hold payments on your behalf; you settle directly with the seller.

On a listing with a Questions tab, choose Ask to ask the seller something every buyer might want to know. Until the seller answers, only you and the seller see your question. Then the question and the answer show on the listing for everyone, with your public profile name, or “A member” if your profile is private. Only the seller can answer, and either of you can remove the question. Links and contact details are not allowed, so keep anything private to Message, and use Report on a question that breaks the rules.