There is no ideal cost range for designing an app. The cost of offering UX/UI design services depends on several factors, including the app's category, the complexity of the design, the number of elements and features your design has, the number of screens you need to design, and any kind of animation, and so on. So, in order to give you an estimate, we first need to know your custom needs. Therefore, contact us with your design requirements and get the estimated quote for app design services.