Speak's primary market consists of individual learners seeking spoken fluency through a "human-level" AI tutor. The platform has demonstrated exceptional consumer appeal, reaching over 10 million users across 40 countries, with a user base that has doubled annually for five consecutive years. Its success is most evident in South Korea, where it was first launched and is currently the top-grossing education app. 

Speak expanded its focus to the enterprise sector with the launch of Speak for Business, which aims to provide a scalable language training solution for corporate employees. 

This segment is a critical component of Speak’s recent growth strategy, supported by its $78 million Series C funding round to further penetrate global enterprise markets. By integrating into corporate environments, Speak provides employers with a measurable way to enhance employee communication.