This is beta version. We're waiting for your feedback, ideas and bug reports! You can share your opinion here or send it directly to us by email: firstname.lastname@example.org.
Open your existing database in iCloud, Dropbox or Google Drive and work with it. To sync data simply save the file (File - Save or cmd+S). Tap "Sync now" button in the mobile version of the app to update file in the cloud. Automatic sync doesn't work yet.