If you've been using a Mac for more than a few years then it's likely that you've done your part of evangelism. Recently, I helped a neighbor switch from an older Windows notebook to a new MacBook Pro. Everything went well until it came to which backup app to use.
I rattlet of the standard list of SuperDuper !, Carbon Copy Cloner and three or four others. His answer? " OK, but if I could only use a Mac backup and sync the app to keep files backed up between devices, you would recommend ." Easy choice. ChronoSync.
iSync Because iShould
There is absolutely nothing wrong with SuperDuper! or Carbon Copy Cloner or one of a dozen tools that are easier to use and slightly cheaper to own than ChronoSync. But for all Mac users in need of cloning, who need to sync files easily and automatically between Mac and Mac, and through a local network, this is my first and last recommendation.
I started using ChronoSync back in the day, and ̵
Begin with time honored source and destination destination.
 Where ChronoSync shines is the list of options to synchronize or move or mirror files between two devices, Mac or otherwise. At the height, what you get with ChronoSync, is much like a Swiss army knife.
You can synchronize files, back up files and even mirror files between two folders, two disks or two Macs.
19659002] ChronoSync automatically stores storage volumes and performs assigned backups or syncs. The app logs everything and can send you a notification when a backup is completed. There is another option to tap an iPhone alert so you can be sure that a backup or sync went as planned.
First backup of files from one folder to another usually takes a while – first time. After that, ChronoSync uses a SmartScan component that makes subsequent backups much faster. I started using ChronoSync back in the early days of OS X, around 2003, so I'm most familiar with how to configure it and use it in automatic scheduling mode.
 Therein lies the only real problem a typical Mac user can have. ChronoSync has so many backup, sync, mirror, clone and usage features that it can be daunting to try. So I suggest you slow down; insert a simple sync from one folder to another, check the preview before starting the synchronization, and when you are comfortable with it, go to the planner.
You can easily set up multiple synchronization operations in a container and get them run according to a schedule.
ChronoSync has been a solid artist for me over the years and there has never been an upgrade price. The app takes a little patience to get used to because there are so many options, but if you could only use a single Mac backup and sync app, this would be it.