The development of the Cross-Platform application has its merits that play an important role in its current popularity. Generally, Mobile Applications are both developed for the Android Operating System or iPhone Operating System where the code and Technology for the same application are completely different it is one of the major problems of cross-platform mobile app development companies. The development of the Mobile Platform Cross application is where a developer designs a compatible application with multiple operating systems. What is a cross-platform Framework? Frames are special tools and libraries that help developers create faster applications with greater efficiency. The frames of the transversal platform add the cost to the development of demand by providing the tools to create applications for more platforms. A developer can create unique code to distribute network, iOS, and Android applications with these frameworks. As a result, cross-platform mobile app development frameworks are very popular with developers because they open a new frontier in the development of the application.