In previous years, apps would just run with Admin privileges which would give them access to everything on the computer. However, Apple is getting stricter with app permissions, so our app and most others don't run with admin privileges.
If you attempt to choose a folder that Digital Pigeon app does not have write permissions for, you will see a message: Digital Pigeon does not have permissions to write to folder <Folder Name>. Please select another folder.
By default, when you add a drive to OS X it gives Admin users Read & Write but Me (your account login) is excluded. To allow the Digital Pigeon app to save to the drive or folder, you'll need to make sure that Me is listed in the permissions for the drive with Read and Write Access.
To change the drive permissions open Finder and Press Control on your Keyboard + click the Drive and open the Get Info option. Then under Sharing & Permissions, click the Plus (+) button and select yourself from the menu. Finally, choose Read & Write under Privilege.