Shared files across devices?

Is it possible to share files - for example, if I set up a folder using the desktop program and put some work documents in it… can I install cryptomator on my phone to view those documents and have my friend also have it installed on his phone to view the same documents? Not to edit them, just for viewing.

if you give the vault password to your friend: yes. But he will have full rights (read, write, delete)