The biggest hurdle 'that you need to overcome in order to make a version of your app that can be submitted to app stores is acquiring a distribution certificate. The process is quicker for Android, but does involve some typing to be done in the command line, and there is a slight difference if you are on Windows rather than Mac. The iOS process has many steps to it, but at least they don't involve typing cryptic commands. We'll look at Android first.
One of the thing that was installed when you added the Java Development Kit is a tool to make a "keystore" file, which is a self-assigned certificate. It's this tool that is used to create the certificate you'll need in order to distribute an Android app.
On Mac, you don't need to find this application, you can simply type the command in the Terminal and you'll find the tool. On Windows, you need to navigate to the folder where Keytool is located first. Before...