Privacy Policy

Account information: full name, email address, phone number (optional), profile photo, preferred language, and country.

Host information: household name, home address, bank account details (for receiving payments from Guests and paying our platform fee), ID document and kitchen photos submitted for verification.

Booking information: dates, guest count, dietary restrictions and allergies you share with a Host, special requests, and in-app chat messages between Guest and Host.

Reviews: ratings and written reviews you choose to publish.

Food preferences (optional): diet (e.g. vegetarian, halal), cuisines you'd like to try and spice level, if you set them on your Account page. If you are signed in, we also record which meals, cities and experience types you viewed (grouped per day, kept up to 12 months) to personalise suggestions — never your location or device. You can turn this off at any time, which deletes that history. Allergies are not stored in your profile: you declare them per guest on each booking.

Usage information: basic device and error-log data collected automatically to help us fix bugs (see "Analytics and error reporting" below).

We do not collect payment card details — payments are made by direct bank transfer, and we never see your bank login or card numbers.

• To create and manage your account, and to operate bookings between Guests and Hosts.
• To verify Host identity and kitchen safety before a listing goes live.
• To share allergy and dietary information with the relevant Host so a meal can be prepared safely.
• To translate chat messages between Guests and Hosts.
• To send booking, payment, and account emails.
• To detect fraud, abuse, and to enforce our Terms of Service.

We share the minimum information needed for a booking to work:

• Your Host or Guest counterpart sees your name, allergy/dietary notes, and chat messages for a shared booking.
• A Host's bank details are shown only to the Guest of a confirmed booking, so payment can be made directly.

We use a small number of service providers to operate mammam, who process data on our behalf:

• Supabase — database, authentication, and file storage.
• OpenAI — translates chat messages between Guests and Hosts, and, when the Trip Concierge AI is enabled, reads the trip request you type to understand it. Concierge requests are not stored; we keep only anonymous usage counts (city, days, group size) for 30 days.
• Resend — delivers transactional emails (booking updates, notifications).

We do not sell your personal data to anyone.

We keep your account and booking data for as long as your account is active, and for a reasonable period afterward to meet accounting, tax, and dispute-resolution needs. Host verification documents (ID, kitchen photos) are stored in a private bucket accessible only to that Host and to mammam admins.

• You can update most profile information directly in the app.
• You can delete your account in the app or on the web: Account → Delete account. We complete deletion within 30 days: your name, contact details, preferences, viewing history and sign-in are removed; past booking and payment records are kept without your identity where required for accounting and disputes.
• You can report messages, reviews or listings and block another user from a booking chat. Reported content is reviewed by our team, usually within 24 hours.
• You can also request a copy of your data, or ask us to delete your account, by emailing support@mammam.io.vn. We may retain limited records where required by law (e.g. completed payment records).
• Reviews you've published may remain visible even after account deletion, shown as from a former user, unless you ask us to remove them individually.

We use basic client-side error reporting to catch bugs (crashes, failed requests). This can include the page you were on and technical details about the error, but is not used to build an advertising profile of you.

mammam is not directed at children, and we don't knowingly collect data from anyone under 18.

We may update this Privacy Policy from time to time. If we make material changes, we'll update the date above and, where appropriate, notify you in the app.

Questions about this policy or your data? Email us at support@mammam.io.vn.