stupid question maybe but need some help.

7D Ago
So I have some bitcoin under $50 but its in this app from Google play named I received the bitcoin like 3 years ago for some work I did and didn't really care but now I have realized that I should maybe move it into a exchange wallet so I can sell it or whatever. I don't know how to to that now. Do I send what I already have in the new exchange wallet or is there a way to connect both wallets? English is not my first language so if there is something wrong with explaining my problem please let me know.