How about, I tell you, I am a junior programmer in Android and iOS systems I am developing an application and web which requires a lot of data flow and storage. To give an idea, it is intended to be an application and web similar to eBay or OLX. That is, many online users, chats and many data and images on the server.
What I do not know, and here comes my doubt, is that I need to host all this?
Thank you.