no ios or and rio androd, windows only so what app?

there is no app for windows. To connect to a windows machine you can plug in directly to a USB port or you can use a limited function web browser access. 

here is a kb article

http://kb.sandisk.com/app/answers/detail/a_id/17540/ 

This info is also in the user manual. 

http://kb.sandisk.com/app/answers/detail/a_id/17367/