I need a discrete, invitation-only network that runs seamlessly on the web and as native mobile apps (iOS and Android). The audience is an ultra-high-net-worth crowd, so stability, speed and security must be uncompromising. Core functions • Private, end-to-end encrypted messaging between members • A section for exclusive listings—think off-market investments or hand-picked opportunities—visible only to invited users Access flow Every new member joins through a single-use code. No public sign-ups, no password resets without manual admin approval. An admin dashboard should let me generate, revoke or expire invites in seconds. Tech notes React (or Flutter) paired with a robust backend—Node, Django or similar—works for me as long as you can demonstrate encryption, secure cloud deployment and clean, documented APIs that the web and mobile clients share. A lightweight CMS for listing management will save us time. Deliverables 1. Responsive web app 2. iOS and Android apps ready for App Store / Play submission 3. Admin dashboard with invite management and analytics 4. Full source code, deployment scripts and a brief hand-off guide Once the build is stable, I’ll need ongoing maintenance, but the first milestone is an MVP that proves the invite-only flow and messaging work flawlessly.