You can sync call logs between iPhones and iPads with "PhoneLog for iPhone & iPad" and Macs with "PhoneLog Pro", or any combination of the two.
If you are syncing between a combination of Macs, iPhones and iPads, then you can choose to sync using Dropbox.
Alternatively you can use our own 'Sync Server', which is a new subscription service that is designed to sync your call logs more quickly than when using Dropbox.
Syncing using Apple's iCloud is not supported at this time, but is a possible future enhancement. Please send a feedback email if you are keen to see this capability implemented.