Adding files from your mobile phone to Saganworks is simple. You just need to download the app to your phone first, and from there you can add any file or link just by clicking the share option.
See here how we add a link from a web app. Simply click the share option and then pick Saganworks from your apps.
Then go to the Saganworks app and you'll see the link you added is the first item in the KI Palette.