Web bomber

http://readlang.com/en/links
https://alternativeto.net/software/readlang/
https://alternativeto.net/software/memrise/
https://www.vocabulary.com/
https://ankiweb.net/shared/info/375664776
https://learn.lingvist.com/#guess
https://www.memrise.com/course/1096896/englisch-uk-1/