Reminders and iCloud CalDAV

Apple's Reminders app does not share its task data through iCloud CalDAV. 2Do's iCloud option syncs with iCloud CalDAV lists. If a list is only available inside Reminders, 2Do cannot continue syncing that list through iCloud CalDAV.

Recovery. Don't panic — 2Do can create automatic backups of your tasks.

1. Open Settings > Backups > Manage Auto-Backups on iPhone or iPad, or 2Do > Settings > Backups > Manage Backups on Mac.
2. Restore from a recent backup that contains the tasks you want to keep.
3. On the next sync, choose Replace server data only when your restored 2Do data is the copy you want to push back to iCloud CalDAV.

If you want the same 2Do task data on iPhone, iPad, Mac, and Android without depending on Reminders, use Dropbox sync.