If I will buy this course, I want to know the validity of this course and do you have any android mobile app so that i can read this course through mobile.
Hi @AJAY_KUMAR,
Thanks for contacting us. “Grokking the System Design” is developed by engineers from Facebook, Google, and Amazon and more than 20K people have used it to prepare for their design interviews. Once you buy the course you will have lifetime access of it.
Educative is working on enabling their platform on Andriod.
–Design Gurus team