Anybody tell me about anothers Options Apps alternatives as sololearn? Thanks so much

Answer 1

www.udacity.com

It is my personal best after sololearn
and it's powered or sponcered by GOOGLE

Answer 2

it has its own playground so It does not require ide
and it's an learning app not a programing or development app

Answer 3

is available app in android with engine ide?

Answer 4

thanks so much i will prove it