OpenSupports is completely free, so you can download it and implement it into your website without paying anything. Also, it's an open source script, this means you can modify the code as much as you want and use it without any restriction to fit it into your project.
You can use several languages as a default language, but you can also use multiple languages and bring support to people all over the word. OpenSupports currently supports six language packs but there will be more in future versions.
The new Plugins API allows you to create modifications and plugins in a very easy way. We have a huge documentation and video tutorials to make it easy to learn. However, if you are not a developer you can download plugins and themes made by other people and add it into your website.
Introduction to OpenSupports
OpenSupports 3 has a huge quantity of new features you can use for your website. Here is an introduction video about how OS3 works and helps you to make a better administration of your users' consults.