Simulations have always been used for public participation in the form of maps, photos, sketches and models. Technological developments in computing and mobile platform have brought a new perspective to simulations and their use for participation. To our best knowledge, no in-depth study has been conducted related to the strengths and weaknesses of mobile device 3D visualisation use in landscape architecture. Therefore, this paper investigates the opportunities and challenges and mobile device use during a participatory decision-making process, with the help of related literature and experiences from the surveys conducted. Although pre-prepared visualisations have positive influence on engaging the public and enhancing the understanding, there is still need for future research to decide which specific mobile visualisation technique is advantageous compared to the rest of visualisation techniques.