Duolingo is now one of the world’s best-known education apps. More than 100 million people use it every month, and its green owl has become a global symbol of language learning. But the story behind Duolingo began far from Silicon Valley. It began with Luis von Ahn’s experience growing up in Guatemala.
Von Ahn has often described education as a central part of his life. His mother, a doctor, spent much of her money on his schooling. As a child, he attended one of the best schools in Guatemala, even though his family was not wealthy. There, he studied with children from richer families and received a high-quality education.
At the same time, he could see a very different reality around him. Many children in his neighborhood went to public schools or less privileged schools. Some were not learning nearly as much as he was. The difference was clear to him from an early age. Education, which is often described as a path to equality, can also deepen inequality when only some children have access to good schools.
This experience shaped his thinking. Von Ahn came to believe that access to education should not depend so heavily on family income, geography, or social class. Later, this idea became part of Duolingo’s mission: to offer free, high-quality education to as many people as possible.
Language learning was especially important. Von Ahn eventually went to the United States for university, but getting there required English. At the time, students who wanted to study abroad often had to take an English test at a physical testing center. In Guatemala, there were not enough spaces available that year. He could either wait another year or travel to another country to take the test.
He chose to fly to El Salvador. Looking back, he has said that it did not seem like such a big deal at the time, but in retrospect, it was an extreme step just to prove that he knew English. The experience showed him how access to language testing, not only language learning, could become a barrier to opportunity.
English is not just another school subject. In many countries, it is connected to higher education, better jobs, international business, and migration. This does not mean English is more valuable than other languages in a cultural sense. But economically and socially, English often functions as a gatekeeper. People who know it may have more options, while people who do not may be excluded from opportunities.
This is one reason Duolingo began with language learning rather than another subject. Von Ahn and his co-founder wanted to build something related to education, but they also wanted to reach a very large number of people. English was a natural starting point because so many people around the world wanted or needed to learn it.
Duolingo’s promise is simple but ambitious: learning should be free, accessible, and engaging. Of course, an app cannot solve all educational inequality. It cannot replace teachers, stable schools, safe communities, or family support. But it can remove some barriers. It can make practice available to people who do not have access to expensive classes or textbooks.
The deeper lesson of Duolingo’s origin is not only that one successful founder cared about education. It is that education is never just personal. It is connected to family sacrifice, social class, language, migration, technology, and opportunity. For many learners, English is not only a subject to study. It is a door — and the question is who gets a fair chance to open it.
