Tuna Pay was a start-up project offering mobile apps developers way for monetizing their products via an in-app payments framework friendly for users and easy to use for developers. The payment solution was available for J2ME and Android platforms and got a support from JIC (South Moravian Innovation Centre). As any other start-up Tuna Pay involved getting hands on many different fields. As a designer I contributed to discussions about the service design and co-worked on the actual deliverables (copywriting, branding, UX/UI, coding, debugging).