This project centers on turning a simple telephone idea into a full-featured mobile application focused on social networking. The goal is to go beyond basic calling by giving users a place to connect, share, and interact directly from their phones—“les application” in spirit and in practice. It must be a native or cross-platform mobile app (Android and/or iOS) whose core features revolve around social interaction: user profiles, friend or contact lists, real-time messaging, voice or video calls, and a feed where people can post updates. An intuitive UI, smooth onboarding, and rock-solid back-end architecture are essential for the experience I have in mind. Key acceptance criteria • Complete mobile build (APK/IPA or TestFlight) ready for store submission • Secure user authentication and data storage • Real-time chat plus integrated voice/video calling • Scalable database and API layer (Firebase, Node, Django, or similar) • Clean, documented code so future updates are straightforward Please keep the design modern and lightweight, with performance tuned for mid-range devices. Any framework—Flutter, React Native, Swift, or Kotlin—is fine as long as the final app is reliable, responsive, and social at its core.