Are you talking about APDE?
I use it for two years now. I code on the PC however of course for ease.
But after some lines, I want to test it, and I select all/copy the code, and I use a clipboard app called Pigeon. With this app, the clipboard is transferred to the phone and I can instantly paste it into the APDE IDE. This app has also a fast preview compile mode, so just with a few clicks, I can run/test the code in less than 4 seconds.
I use Quick Support by Teamviewer and I control my phone using my computer and I copy and paste that way. however I use my keyboard and mouse. So I can install it
my phone
my client’s phone, tablet
any body who I want to demo the app for
The possibilities are quite endless when you think about it. You can prototype an app for “anyone” with a few clicks of the mouse. Seriously very easy to use.