Flutter apps are written in the language Dart and make use of many of the more advanced functions of the language. That is why Flutter developers are experienced with this language. Naturally, they also have a lot of experience with the Flutter Software Development Kit (SDK). A Flutter programmer has knowledge of app development, meaning they know how Android and iOS are wired. Hence, they understand the best practises of mobile app development. Flutter developers can translate designs to responsive UIs of high quality. They understand how customer-oriented software can be optimized.