Econ Technologies ( has released ChronoSync 4.6, an update of the Mac backup, bootable backup, and folder synchronizing app, on World Backup Day.

It works with any device you can connect to a Mac such as external drives, thumb drives, network volumes, remote Macs, or even a PC. A demo is available for download. Registration is US$49.99. Existing users update for free.

ChronoSync 4.6 adds SmartScan, an advanced algorithm for analyzing a volume for changes. File system analysis can often be the most time consuming part of a synchronization or backup. While SmartScan won’t copy your files any faster, detecting which ones need to be copied can see speed improvements. Version 4.6