Free and open source software, also free for commercial purposes. Source code is licensed under LGPL. Requires .NET 4.5 or Mono.
Ranked in these QuestionsQuestion Ranking
Pro 100% FREE and Open Source
Free for use even for commercial purposes, no limitations.
Pro It is easy to use and can check data integrity and handle unstable networks
It has a wizard-like interface, making it good for beginners, and it can download the stored data and check its integrity. Not only it can handle network hiccups but also it will try to repair the files if it detects any corruption.
Pro Many Backends
It works with several protocols like FTP, SSH, WebDAV and popular services like Microsoft OneDrive, Amazon Cloud Drive & S3, Google Drive, box.com, Mega, hubiC, etc.
Pro Smart retention policy
By default there will remain one backup for each of the last 7 days, each of the last 4 weeks, each of the last 12 months.
Pro It works on many Operating Systems
It is available for Windows, macOS and Linux.
Con It lacks features
Its options are very basic, not for the power user.