Effective sharing of local resources, tools, everyday goods, and skills can change daily life. However, current peer-to-peer (P2P) systems, the majority of the time, struggle with user engagement, supply-demand mismatch, and a lack of trust. This paper surveys these models and introduces a mobile-centric sharing app using Flutter and Firebase. The design features user authentication, location-based discovery, and an in-app negotiation module with a rating system for reliability. Prototype tests show responsive interactions averaging under two seconds. Role-based access control and encrypted data exchanges address security concerns. This survey demonstrates how intelligent local platforms can optimize assets, minimize waste, and enhance community resilience.