Hello furkansevimli,
This is your first project on freelancer,
As i read your project description, only we can develop this full working site.
we need 30-40days as your requirements.
we can develop portal, database system, animation, video player, graphic design, website design & programming, and at list android apps.
i read your project description very well you need all this service at all.
please come on discussion, because i have many examples to provide you.
regards
anymix team