A good way of enticing new users could be to build a bit more of a story/value proposition around your overall approach/system (versus the tool/app - I'm not looking for tools, I'm looking for solutions).

Maybe you could write a couple of articles about your system, how you might use it, why it's better than other systems and who it will work well for (or maybe an ebook would work). Then use the description of your overall time management system/apporach to lead people into your tool.