SpiderOak provides an easy, secure and consolidated free online backup, storage, access, sharing & sync* tool for Windows, Mac OS X, and Linux (Ubuntu, Debian & Fedora). It is a freeware scheduler backup application that's easy to setup, easy-to-use and powerful.
Here are some screenshots to illustrate the features and user interface of this application:
Google Photos App
Handy Backup
Iperius Backup
GoodSync
GRBackPro