Because Udemy is an open marketplace, a $15 course may be excellent (produced by a TESOL-certified instructor) or poor (a single amateur video with background noise). The rating system is easily manipulated.
Completing a Udemy course yields a certificate of completion, but it is not accredited. Employers and universities generally do not recognize it as proof of English proficiency. udemy spoken english
Subtitle: Evaluating Efficacy, Pedagogical Approaches, and Learner Outcomes in Digital ESL Education Because Udemy is an open marketplace, a $15