Doesn’t work? – Cloud - Mail for GoogleDrive,Dropbox,Box,Onedrive Review

Paid app and it doesn’t allow me to connect any of my cloud drives. Just gives me errors and says to use in a separate browser. What’s the purpose of this PAID app if it forces me to an outside browser?
Review by jim8mad on Cloud - Mail for GoogleDrive,Dropbox,Box,Onedrive.