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Co-Sister is a women-centered, trust-based stay network. We're not just about where you sleep — we care about how women build trust with each other, hold clear boundaries, and feel genuinely safe while they stay. Through thoughtful matching, a mutual feedback system, Stay Agreements, and clear community guidelines, we help hosts and guests arrive at each stay with shared expectations and better experiences. What we're building isn't just a place to sleep — it's a more trusted, more boundaried way for women to stay.

Co-Sister uses identity verification, Stay Agreements, a mutual feedback system, and clear community guidelines to help hosts and guests build shared understanding before and after every stay. If something feels wrong or a dispute arises, there's a dedicated process — with human review — to handle it with care.

Trust Seeds (Seeds) are the core credential inside Co-Sister. They're used to initiate bookings, hold commitments, and build your trust record over time. Whether you're booking a SisterBase stay or a SisterGuide conversation, Seeds are the signal that this connection is real and worth showing up for. When you send a request, your Seed gets tagged. Before the arranged time, it locks — this isn't a casual inquiry, it's a commitment. If the stay or conversation completes smoothly and both sides submit feedback, the Seed blooms back to your account and becomes part of your trust record. If there's an unexplained cancellation, no-show, misconduct, or other violation, the Seed may be frozen and enter the dispute process. Seeds exist so that trust isn't just a feeling — it leaves a trace, carries accountability, and can be built up over time.

Yes. Co-Sister is currently open to adults aged 18 and older. Because stays involve real arrangements, identity verification, and mutual accountability, we want every member to participate with a clear understanding of what that means. Age is confirmed as part of the signup process.

Co-Sister is for women only. Co-Sister is built for women, by women. The network exists so that women can stay, connect, and support one another with greater trust and clearer boundaries at the center.

SisterBase is Co-Sister's home-sharing feature — connecting Sisters who want to explore with Sisters who are ready to open their doors. You're not exchanging money. You're exchanging trust. Every stay is backed by a Stay Agreement and the Sister Seed trust system. Matching is 1:1, based on your Travel Persona and city preferences — no listings, no browsing strangers.

SisterGuide is Co-Sister's 1:1 sister conversation feature. You can find a sister based on city, language, lived experience, or topic — and book a real conversation with her. SisterGuide is built for experience sharing, warm guidance, and genuine support — not formal professional consultation.

SisterGuide lets you find the right sister for your needs and book a 1:1 conversation. 1 — Choose your direction Career transitions, life abroad, city guides, solo travel advice, creative paths, and more. 2 — Find a sister Browse by field, experience, language, location, or the kind of support you're looking for. 3 — Book with a Trust Seed Sending a SisterGuide request uses one Trust Seed — a signal that this exchange deserves real commitment. 4 — Complete the conversation and submit feedback When both sides finish and submit feedback, your Seed blooms back and adds to your trust record. 5 — If formal professional services come up, you'll be redirected SisterGuide is for experience sharing and warm guidance — not legal, medical, or formal professional services. If a conversation moves in that direction, we'll point you to the right external resource. We want SisterGuide to be how you find the right sister at the right moment — not just a random chat.