Horodruin is described as 'This program allows you to synchronize more than 2 folders with just few clicks. It's very simple, but you first must read the included documentation' and is an app in the Backup & Sync category. There are more than 10 alternatives to Horodruin for a variety of platforms, including Windows, Mac, Linux, BSD and openSUSE. The best alternative is FreeFileSync, which is both free and Open Source. Other great apps like Horodruin are rsync (Free, Open Source), Bacula (Free, Open Source), Back4Sure (Free) and Truck - Rsync Client (Paid).
Bacula is a set of Open Source, enterprise ready, computer programs that permit you (or the system administrator) to manage backup, recovery, and verification of computer data across a network of computers of different kinds.
A graphical user interface for rsync, which looks-and-feels like a standard FTP client, but uses the rsync protocol ‘under the hood’ to boost transfer speeds. In technical terms, it’s an SSH browser with an rsync transfer engine.
KLS Backup - Powerful backup and synchronization program with FTP, WebDAV and cloud support (Windows Azure, Amazon S3, Eucalyptus Walrus) KLS Backup is a powerful backup, synchronization and disk cleaner program that allows you to back up or synchronize your data to local and...
Uranium is a light and reliable backup software for the protection of your personal and business data. An all-in-one solution able to suit all your needs, available in both free and commercial editions.
AnyBackup is designed to keep two pools of volumes in sync with one another. The primary use case is backing up one large network array to several smaller volumes. These syncs are intended to be periodic and user initiated.
Lsyncd watches a local directory trees event monitor interface (inotify or fsevents). It aggregates and combines events for a few seconds and then spawns one (or more) process(es) to synchronize the changes. By default this is rsync.