Synchronize Cloud Contacts is CardDAV client can synchronize contacts in iCloud Server. With this app you can share and synchronize contacts between Android devices and iDevices. In short you can add update delete contact on Android phone and it will appear on iDevices. It supported 2-STEPS VERIFICATION with APP-PASSWORD two-way synchronization (server ↔ client) fast algorithms for high performance (ETag/Ctag split contacts ) and beautiful Contact editor.