Full version: You are free to make as many TurnTool scenes as you like. Once a TurnTool file is created without the floating watermark it will stay licensed forever. All updates and bug fixes for version 3.x are free. 

-> Buy the Full version here

Educational version: TurnToolBox is available for schools and educational organizations at a lower rate. This version is for non-commercial output only. TurnTool files from the educational version will have a non-floating and non-clickable watermark in the lower right corner.

-> Buy the Educational version here