The active role and direct involvement of citizens is essential for environmental sustainability and reducing the environmental footprint of communities and organisations. This paper introduces the IDEA (Integrated Display for Environmental Awareness) system is a digital tool designed to help users and organizations understand and reduce their environmental footprint while supporting community-wide sustainability. It features a mobile app for tracking consumption data and providing real-time feedback, which is aggregated with data from organizational sources and sensors and displayed on large screens. A pilot study involving 12 participants demonstrated that IDEA effectively increased environmental awareness and promoted sustainable behaviors. Feedback highlighted that while the system successfully engaged users and fostered competition through gamification, improvements were needed in user navigation, tracking transparency, and system feedback. Participants suggested incorporating more intuitive features, clearer tracking mechanisms, notifications, and additional visually engaging elements to enhance user experience. Recommendations for future enhancements include using imagery and accessible language to make the information more relatable, as well as providing clear progress summaries and dynamic content to maintain user engagement. These improvements aim to refine the IDEA system’s usability and effectiveness, further supporting sustainability efforts at both individual and organizational levels.