What platforms does CircleBack support? CircleBack Support Updated March 02, 2017 21:03 Follow CircleBack is available for iOS, Android, and on the web. Related articles What do I need to get started? How do I update my account information on the web? What is CircleBack? What does CircleBack do? How do I sync additional devices (including non-iOS)? Will my contacts on my device sync to the web? Comments 0 comments Article is closed for comments.