iOs & Android app help

I have android and ios versions of an app that was developed by someone else that I would like further work done on. I would also like some of your time to be on screen share with me, walking me through how to put the code onto android and ios developer accounts and getting the apps up and running. We'll start by putting the code from bitbucket (data is in a strapi backend) into my developer accounts and then work to assess changes needed to the apps.