You can get more information about Artweaver here.
Artweaver is available in two versions. A Artweaver Free version for free and a Artweaver Plus version with costs which has more features than the free version. You can get more information about the differences of the Artweaver versions here.
More New Features:
- Event saving and playback
- Execution of Photoshop compatible filters (*)
- Improved support for the PSD file format (*)
- Full Unicode support
- Limitation for the presence of a background layer removed
- More possibilities to configure brushes individually (*)
- Editable menu shortcuts (*)