What has made Duolingo a growing language app?  1:27 Duolingo: Just hit the tech unicorn status in 2019 2:07 Duolingo had 500% increase in new users after COVID hits 2:24 Richard tried to use Duolingo for Japanese and French 2:58 Duolingo monetises on ads and ads-free subscription 3:32: Duolingo 30 million monthly user, 38 languages with crowd-sourced content 4:56 Static conversations vs cultured conversations  5:35 Duolingo's grown to a mid-size company with focus on designs and gamification 7:18 Duolingo's pros and cons and the reasons for dropping the languages 10:02 Does Duolingo have a lanuage community? 11:16 Will Duolingo do well in Asia 12:00 Education Tech is big in Asia 14:00 Is Duolingo ticking the right boxes for Asia