modify react native and wordpress app -- 2

Buy a project for Android and ios with react native, on a wordpress basis. I need to make changes such as: to the ads add the option of 2 more phone numbers, to the search engine put a drop-down menu with the registered cities, eliminate some elements of the unnecessary ads, implement the counter of visits per ad, when it detects that there are no The Internet opens an Html file with a basic offline directory, some elements cannot be registered from the app but from the PC, that would be including them in the app, and other minor changes. I have a database that I could not import with wp all import, all the data is added to the database but they do not remain active until I enter and update one by one. I attach the demo links of the topics [login to view URL] [login to view URL] [login to view URL] [login to view URL]