I tried doing it using Renpy, but it gave me an error, saying there's further apps/scripts I need to download to complete it, so I left it there. I haven't had a chance to look into this yet. It's still on my to-do list, but there's a hundred other things on the list ahead of it. So unless someone here let's me know exactly what's involved to do it (I don't have the time at the moment to look into it) and how to do it in less than 30 minutes, it'll be on the to-do list for a while. Sorry man!
I just downloaded the Renpy SDK and it was fairly straight forward to create an Android package, it told me that I needed to download RAPT but Renpy downloaded it on its own, then I clicked on Install SDK & Create Keys and it downloaded everything on its own again; just prompting me a few times for confirmation.
After that I had to configure a few things about the package itself, but the entire thing was guided by Renpy, never had to Google anything. It took me maybe 15 minutes to run the setup to the point where it allowed me to build a package.
If you are having any specific problems I am down to help you solve them but I would require some information about what the exact problem is that you are facing. It is possible that if you are using Windows it might not be able to do everything auto-magically as it does on Linux.
Although, I am not sure if this conversation belongs on this thread, perhaps it would be better suited in private.