ChronoSync Updated With El Capitan Support Posted 10/03/2015 at 6:19 UTC in Mac by gnye@amdesign.net | Permalink | Tweet Econ Technologies updates ChronoSync to version 4.6.4 with fixes related to OS X El Capitan. ChronoSync, the the complete Mac backup, bootable backup, and folder synchronizing app works with any device you can connect to a Mac such as external drives, thumb drives, network volumes, remote Macs, or even a PC. Additionally the update includes fixes to problems with establishing IPv6 network connections. Whether it's a minor or major update all existing users update for free.