All leagues in duolingo!

All duolingo leagues and how many players will advance to the next! Subscribe to my channel to see more videos of this type!

First in the Pearl league

Duolingo's Excellent User Retention Strategies, by Atanas Shorgov

Discuss Everything About Duolingo Wiki

How to progress in leagues - Page 2 - Duolingo Forum

What Are The Leagues in Duolingo? Gamified Language Learning Experience - Language Learning Apps

Lukas' weblog

Everything You Need to Know About Duolingo Leagues • Happily Ever Travels

How Duolingo reignited user growth - by Jorge Mazal

56: Why Would Anyone spend so much time on Duolingo?