Screens can store your saved connections and application settings using three methods: iCloud, Dropbox, and local storage.
iCloud and Dropbox allow Screens to synchronize your saved connections and settings on all devices on which Screens is installed. The local storage option will only store your data locally on the device Screens is installed on. Your data won’t be available on any other device.
If available, Screens uses iCloud by default. You may select your preferred storage method in the app settings.
The Dropbox option requires a valid Dropbox account. If you don’t have one, you can sign up at dropbox.com.
Note that this feature is available only with Screens 4.x and later.
Related: Troubleshooting iCloud issues