[edimaudo]

Start with a broad overview of what you want the app to do - This will guide you in terms of knowing whether you need a front and backend.

When you know this do mockups of the app then choose the tech that best meets your needs.

[rajasuba]

I wish to develop an app like posting problems and it should contain the following part ( i] discussing about the problem ii] why this problem has occured - the root cause of the problem iii] and the finally solution for the problem and iv] suggestions for improving the solution ) like this..