nanoDLP

Hi all.
I'm new to the forum and have the following questions:
1. I am building an LCD printer, using arduino mega 2560, ramps 1.4. If I use windows version of nanodlp, do I still need a raspberry pi?
2. If instead I decide to have a raspi for my printer, can I use my android 7 phone to control it? If yes, how is this done?
Thanks for the answers