Building a travel booking app in Singapore for icore.sg involves various cost factors. Development expenses typically range from SGD 10,000 to SGD 100,000, depending on complexity, features, and design. Key elements influencing cost include integration with booking systems, user interface design, payment gateways, and backend infrastructure. Custom features, such as real-time updates and multi-language support, can increase the price. Additionally, ongoing costs for maintenance, updates, and server hosting should be considered. For an accurate estimate, it’s best to consult with development firms who can provide a tailored quote based on your specific needs and project scope.