Duolingo Free App - 搜索视频

How Duolingo Turned a Free Language App Into a $7.7 Billion Business

How Duolingo Turned a Free Language App Into a $7.7 Billion Business

Language-learning app Duolingo makes around $500 million annually, despite offering all of its lessons for free. WSJ explores how the company is using AI and A/B testing to keep users hooked.

Microsoft NewsThe Wall Street Journal4 个月之前

Duolingo Review

Có nên mua tài khoản Duolingo Plus | Review

Có nên mua tài khoản Duolingo Plus | Review

chiasepremium.com

2022年2月18日

Woordjes stampen is zo 1998

Woordjes stampen is zo 1998

2022年11月13日

Review Thịt Luộc Doulingo Nguyên Con

Review Thịt Luộc Doulingo Nguyên Con

TikTokreviewcuisine

已浏览 85.1万次3 个月之前

热门视频

#1 Language Learning App

#1 Language Learning App

FacebookDuolingo

已浏览 1.1万次2020年12月3日

Duolingo

FacebookApp Store

已浏览 1.3万次2018年1月28日

#1 Education App

#1 Education App

FacebookDuolingo

已浏览 1277.4万次2020年4月16日

Learn Languages with Duolingo

MOST DIFFICULT LANGUAGES TO LEARN! #podcast #podcasts #podcasting #podcastlife #podcastclips #reels #language #learning #duolingo #studies #languages #linguistics | Dubai After Dark Podcast

MOST DIFFICULT LANGUAGES TO LEARN! #podcast #podcasts #podcasting #podcastlife #podcastclips #reels #language #learning #duolingo #studies #languages #linguistics | Dubai After Dark Podcast

FacebookDubai After Dark Podcast

已浏览 123.6万次2023年9月2日

Learn 30 Languages for Free

Learn 30 Languages for Free

FacebookDuolingo

已浏览 2291.2万次2019年8月6日

Learn 30 Languages for Free

Learn 30 Languages for Free

FacebookDuolingo

已浏览 26.9万次2019年10月29日