Syncfusion have recently followed the Microsoft Visual Studio Community Edition and launched a Community Edition of their Essential Studio Enterprise Edition.
See http://www.syncfusion.com/products/communitylicense
It gives free access to the entire product, with updates and support, to individual developers and small businesses (gross revenue below $!m USD).
There are components across web, mobile and desktop platforms. View the samples for yourself.
What’s the catch? There really doesn’t seem to be one. Go get it!