Hello
you need to build android app ,
think I'm the right person to do that ,
because I am android Developer using java ,
and I have many years' experience in android programing, XML ,Java, Firebase, API , Fragment, google map , SQLite and more.
I can build a professional app for you , friendly , and clean code without problems , and I can upload your app on google play if you want .
please contact me to give me more information about the app.
Best regards.