Questbook is a platform that provides a home for high-quality builders. It enables builders to submit proposals and receive funding for their projects with the help of milestones. The platform also allows users to explore grant programs. What makes Questbook different from other businesses in the same industry is that it uses blockchain technology to ensure secure and transparent transactions. This technology allows users to review and fund proposals with milestones, all on the blockchain. Furthermore, Questbook is committed to protecting user data and privacy, as outlined in their Terms of Service and Privacy Policy. Questbook makes a profit by charging a fee for the services it provides.