Econ Technologies (www.econtechnologies.com) 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