You can share a folder to keep an entire collection of cards in sync with friends or family.
This will then work like a shared iCloud folder in Notes, where if you allow whoever you share with to edit, you can both make changes or add cards and they will stay in sync.
Folders and iCloud sharing requires Barcodes Unlimited
- Add a folder from the plus button in the top corner
- Hold down on a card to drag into a folder, or tap “Move to Folder”
- Hold down on a folder and tap to Share Folder, and then invite family or friends. You can edit the Share Options to control access, and whether those you invite can edit or only view cards.
That’s it! You’re all set. Now you can add cards to the shared folder and they will stay in sync across everyone’s separate accounts and devices. 
