Study can be done in both ways.
Online means with the help of a online website or apps where there are thousands of paid as well as free courses available!
Whereas offline means learning through some books, articles, magazines or friends!
I prefer offline learning, as it will help you in gaining knowledge preferably(according to your choice).
Online learning is not bad though, but sometimes it becomes so boring!
and the ads there would decrease the excitement!
The only best free way to learn online is
Sololearn! :-D
