The cost to develop a mobile application depends on several factors, including app complexity, features, platform choice, and design requirements. A simple app with basic functionality requires less time and effort, while advanced apps with custom UI, third-party integrations, real-time features, and high security demand a higher investment. Development for both Android and iOS also impacts the overall budget, especially when native development is chosen. Additionally, backend infrastructure, testing, and ongoing maintenance play a key role in determining the final cost. Proper planning and clear requirements help businesses manage expenses while building a scalable and user-friendly mobile application.