Cmd+,, open Settings > Account, turn on iCloud Sync, pick the categories, and click Sync Now. The iPhone and iPad app shares the same CloudKit data but carries connections, groups, and tags only.

iCloud Sync settings
What syncs
Each synced category has its own toggle under Sync Categories.
A sync runs at launch, when you switch back to the app, and 2 seconds after you change anything synced.


