The cost of hiring a UI/UX design agency in Singapore can vary significantly based on factors such as project complexity, agency reputation, and the level of customization required. Typically, agencies may charge between SGD 5,000 to SGD 50,000 for a complete UI/UX design project. Smaller projects, like website tweaks or mobile app design, can start at around SGD 2,000. Additional costs may arise from user testing, revisions, and ongoing support. It’s essential to assess your specific needs and budget while considering the value that quality design brings to enhancing user experience and driving engagement.