In order to incentivise consumers to engage in sustainable consumption, a mobile application system is developed to implement an eco-incentive scheme, in which eco-credits are awarded to consumers who recycle and reuse end-of-life products and in which they can use the eco-credits for discounts in shopping, exchange the eco-credits for museum/theatre tickets, or make donations for tree planting. In this paper, the related concept and eco-incentive scheme are introduced first; the infrastructure of the mobile application system is presented; and the process of system development is detailed. The mobile system infrastructure consists of three layers: a database server; communication and integration; and four functional modules including user registration and login, obtaining eco-credits, spending/donating eco-credits, and viewing eco-credit history. Multiple mobile development techniques are utilised to implement the mobile application system. A case study was conducted, demonstrating that the mobile application for eco-incentive can efficiently support consumers in recycling products and managing their reward records. The literature review and user survey revealed that there has not been a mobile application system with the eco-incentive functions of the mobile app presented in this paper, which indicates the novelty of this research.