Hi preya2k, I am one of the creators of the site. We appreciate your feedback.
Actually you can already add more candidates by clicking "List your tool? Become a partner" in the bottom right of the page. This way we allow tool owners, or other users to add more listings. We do moderate the inputs to keep the content of high quality.
We appreciate your feedback and have now made it possible to get the quiz results without leaving your email.
Hope it provides value to you!