Bvckup creates exact copies of your files and folders and then keeps them continuously in sync with the originals. Exceptionally streamlined user interface designed around the simplicity of the day to day use. It provides clear status indication, concise error reporting and one-click access to detailed status information.
Program supports real-time, periodic or manual backups, complete or delta file copying, precise file replication (attributes, timestamps, NTFS security and ownership information). Additionally, it can operate in a NAS-friendly mode that eliminates unneccessary spin-ups of idle harddisks.

1. Real-time, periodic or manual backups
Continuously monitor folders for changes and update their backup copies immediately after the originals are modified. Or run backups at fixed time intervals.

2. Optional delta file copying
Reduce the amount of data being transferred by copying modified parts of the files only. This speeds up the backup, in many cases - dramatically.

3. Precise file replication
Copy not only file contents, but also its attributes, timestamps, NTFS security and ownership information.

4. Intelligent error handling
Rest assured that an issue with a specific file will not preclude the rest of the backup from completing. The program differentiates between file-specific and global errors and handles them differently.

5. Small is beautiful
Minimize the run-time bloat. The program is small, light and closely integrated with an operating system.

6. Powerful and intuitive file filtering
Specify an exact set of files to be backed up using simple and flexible folder and file filtering system.

7. Streamlined and uncluttered user interface
The program is designed around the simplicity of a day to day use. Clear status indication, concise error reporting and a one-click access to detailed status information when you need it.

8. NAS and HDD friendly
Eliminate unnecessary spin-ups of idle hard drives by not touching the destination when there are no local changes.

9. Software updates
Keep your copy of the program updated to the latest version with automatic or manual software updates.
Light on requirements
10. Run the program under regular user accounts as it installs no drivers or services, requires no reboots and, with an exception of shadow copying, needs no administrative privileges.

The license of this software is Free Trial Software, the price is $29.99, you can free download and get a free trial.