Hello and welcome , this article is for those who are starter or about to start mobile applications development and who wants to know the behind technology used to buid a professional apps like facebook, whatsapp, instagram, google etc. To start your journey as a mobile apps developer with proper coding and technique , you need to know some technologies to get started. Here is a list of technologies you need to adapt in order to become a good professional- 1. React - Native 2. Flutter 3. Kotlin 4. JAVA 5. Integration of Third party open sources 6. Android Studio 8. Xcode 9. Swift 10. C# 11. Web services or API 12. SDK here are the terms u need most often to develop an android app or ios app. There are also some other frameworks and libraries available to make mobile apps. But the above technologies are good to build any kind of professional applications. Hope the info may help you , if you are a starter or about to start your career on mobile apps developments.