We provide two editions of FlashCanvas: FlashCanvas Pro and free edition of FlashCanvas.
FlashCanvas Pro is available free of charge for non-profit use. If you use FlashCanvas Pro for commercial purposes, however, you are required to purchase a commercial license.
Version 1.6 released on Dec. 11, 2013. (ChangeLog)
If you need older versions of FlashCanvas Pro for some reason, you can download them from ChangeLog page.
Free edition of FlashCanvas
A free edition of FlashCanvas is also available. This free edition does not have some features of FlashCanvas Pro. But it is open-sourced and everyone can use it at no cost. The differences between FlashCanvas Pro and the free edition of FlashCanvas are described here and here in more detail.
Although FlashCanvas Pro is closed-source, you can get the source code of FlashCanvas from the project page on Google Code. If you have an interest in the source code of FlashCanvas Pro, please contact us via e-mail.