Regular software updates for Intwined Pattern Studio are free.
Intwined will automatically check for new updates whenever you start Intwined, by default, and a message box will pop up to let you know if an update is available. The pop up message box will give you the choice to download and automatically install the update, or not. Of course, this feature only works if your computer is connected to the internet.
This video is a 10 minute video that takes you through design to creating a PDF in less then 10 minutes.