I wish the app added Sql injection as a topic... I don't want only the basics i need intermediate and expert training... I need help on this.... Does anyone have any idea????

Answer 1

Everything comes at a cost. Your best chance is some of the paid sites like Pluralsight, Lynda or Stackskills. Pluralsight and Lynda are subscription based, whereas on Stackskills you can buy individual or bundeled courses. You can also try Udemy or Udacity.
A free alternative would be youtube, coursera or edx.

Answer 2

Ok thanks