Wlingua is a mobile app that offers a series of online Spanish courses covering the full language, including general instruction, verb conjugation, phone conversation, and regional pronunciation. The courses are organized into progressive lessons that combine vocabulary, grammar explanations, reading texts, and audio clips with spaced reviews and certificates for completed levels. Learners can access a range of activities such as pronunciation practice, listening to native speakers, and reading comprehension, all linked to contextual meanings. The app provides both a free basic version and a premium subscription that unlocks all content.