In order to access darknet from 
your phone you need to download two apps from playstore:-
1). Tor browser

2). Orbot










First open orbot app , start the vpn and make a connection by clicking start

Then open Tor browser and select duckduckgo as a search engines and search dot onions links you will find somany numbers of darknet website links ..
But while surfing darknet the website can access any data so that is your responsibility that the websites you are surfing are safer or not ..

The websites can access your webcam your phone shell accesss and almost all the controls ..


You can use tor browser to make your privacy better because it have a very complex algorithm of vpn relays which make your search private ....


The right usage of vpn can make you a pro information gathering geek but it you dont know what to search and how to search thwy you will have a very big problem...