How to draw up a project plan for a client-server application (Web, Android, ios)?

Question

Mobile development

How to design each stage of creating a client-server application with the web, android, ios API.
What development environments and technologies might be required?

Answer 1

• Visual Paradigm is suitable for design if you know how to use CASE tools. (Purely formally, you can work in draw.io, but this destroys the very idea, if you even need a rup's approach)
  
• For Android development, it is better to use Android Studio and write natively in Java/Kotlin. If you want perversions, you can try Dart.
  
• For iOS development, XCode and Swift/Objective-C are the best, obviously.
  
• If you want to work on several platforms at once, and people in your team love C#, then you can try Visual Studio and Xamarin.
  
• There are really many options for the server. Starting from python, js, php and ending with java, c#, f#.