Get a Andorid app online & running

I have an android app that I purchased from Code Canyon I want the app to be Up & Running, initially, I only want the logo changes and APK of the android app. There are 2 apps in it 1st is a user app and the second is an admin App. I want both APKs. Attached is the link of the app:

https://codecanyon.net/item/myfriend-friends-posts-groups-chat-follow-social-networking-app-android-studio-firebase-admob/27901283

My budget is small, but I have work related to the same.