Simplisico, a new algorithm based virtual private tutor that allows the student to ask a question and receive a detailed private tutor like answer for his specific problem.
Our alpha version is online and we have been receiving amazing results from students that study the material we cover in our initial product. (calculus- function analysis). In a nutshell I can say that we are the "wallfram alpha" of students that have a hard time with math. and it is of course for free to all users.