Nagara Mod Apk v1.15  

The application can operate browser, calculator and notepad floated to the screen as multi-window.

I can not test a variety of models because personal development.
You operate the application with care slowly.

You do not open many window.
If you open many window, then android terminates the application for out of memory.

Future, there is a possibility to change the specifications by the review.

[Other]
・When install the file browser, the file browser can start as a mini application.(Ver 1.7)