That looks like it could be really useful stuff. I didn't look around the link for long because it was apparent that I was supposed to think it looks great, but it was hard to quickly answer my questions about it. I was curious how much it helps streamline job management (because that is honestly as high up the chain as I care to be). I would love high quality digital JSAs including pictures of the trees, the site, any concerns or obstacles, before and after shots to keep records, and the ability to update them easily as the job progresses. Maybe even organize those so that you can quickly reference previous work that was done for the client since that is probably their only education in arboriculture.
If it makes keeping up with dollars easier, well... that is boring. If it does what I want, I won't even give you a hard time about advertising a product without paying for ad space or looking for a contractor outside of the job finder section.