I’m not an Apple user, I’m a Linux user, but for some members of our association would like to know if exist any OpenSource app usable both on MACOSX and IOS, for syncing Nextcloud calendar and address book?
I would like to bypass the official IOS address book and calendar and MACOSX address book and calendar, then dismiss iCloud on both SO and use Netxcloud instead.
use Thunderbird on MacOS. On iOS I use on Board apps and take care to have iCloud disabled all the time (never used but the updates try to seduce me ).