I'm making a music streaming service and would like to know where to start. 

Should start with the mobile app?

Also are there anyways to convert a mobile app into web app (with desktop features e.g. upload music) using the same databases anad back-end as the mobile app?

Anthony, you already created a topic about this earlier. Why open another one?

This one probably will get deleted...

Regards João,

MVP moderation team