DinkApp is a mobile app for pickleball players to find nearby courts and open sessions, filter them by day and distance, join and pay in a few taps, and chat with the group before the game. As the UX/UI designer, I designed both sides of the experience — booking and checkout for players, plus session creation and participant management for hosts — in a dark green style with bold yellow accents and heavy sport type that gives it a competitive, on-court feel.