The Folderway software does not collect any personal information about you, your contacts or your Android device. The data you store in Folderway is not analysed or transmitted to any other party in any way.
If you enable the Dropbox syncing facility then Folderway will use Dropbox’s own software library to perform the exchange of data with your Dropbox account. Folderway uses a special area of your Dropbox account reserved for apps. Folderway does not have access to your main Dropbox account data nor to the data of any other app that you may have linked to your Dropbox account.