The key challenges in the success of mobile applications are the ability to personalize to the customer requirements, and the trustworthiness of the application through security and dynamic update of information. This workshop explores potentials and constraints of personalization of mobile applications and challenges for smart cities and smart citizens. New techniques and methodologies for personalization such as indoor localization, bi-channel communication between service providers and users are within the scope of the workshop. Furthermore, processes for user-centric design such as co-creation, techniques for secure access and dynamic data updates for secure smart cities and smart citizens are of special interest. As a novel and exciting addition, this workshop includes a specialist tutorial session on “Co-creation technique – the user-centric living labs approach” presented by Mr. Grahame Smith, Head of Allied Health at LJMU. The participants for the tutorial session will be selected based on their EOI expressed through a short description. Also our industry partners will run a product “elevator pitch” session (EOI required). Brief descriptions of the intended panel sessions are given below.