This paper explores a mobile application designed to measure and manage carbon footprints through integration with Internet of Things (IoT) technology. By harnessing data from smart devices—such as energy meters, wearable’s, and connected vehicles—the app provides users with real-time insights into their carbon emissions. The user-friendly interface allows individuals to track their daily activities, visualize their carbon impact, and receive tailored recommendations for reducing emissions. Incorporating machine learning algorithms, the app analyze user behaviour to suggest practical changes, fostering sustainable habits. Additionally, social features encourage community engagement and collective action towards carbon reduction. User feedback highlights the app’s effectiveness in raising awareness and motivating behavioural shifts. This research demonstrates the potential of combining IoT technology with mobile platforms to enhance environmental accountability, ultimately contributing to a more sustainable future.