Any one of these can be your native language or your target language. That is hundreds of directions, not a single course track.
English
Spanish
French
German
Bengali
Arabic
Hindi
Indonesian
Italian
Japanese
Korean
Marathi
Portuguese
Russian
Tamil
Turkish
Urdu
Vietnamese
Chinese (Simplified)
Chinese (Traditional)
Learn English, Spanish, and 18 more
The Play listing short description is “Learn English, Spanish and 18 more languages with spaced repetition and quizzes.” You choose the language you speak and the language you want to learn. All 20 options work in either direction.
Bengali and the other South Asian languages
Bengali, Hindi, Urdu, Marathi, and Tamil are in the supported list. Any of them can be the language you speak or the language you are learning, including alongside English or Spanish.
Arabic, European, and East Asian languages
Arabic, French, German, Italian, Portuguese, Russian, Turkish, Indonesian, Vietnamese, Japanese, Korean, Chinese (Simplified), and Chinese (Traditional) are the rest of the 20. Learn Mode, Review, Quiz, and Exam use the pair you picked.
What you study in every pair
Flashcards, spaced reviews, quizzes, 60+ articles, and 60+ stories follow the pair you choose, across 31+ categories.
Grammar lessons cover the same 20 languages, with Foundations modules on the free plan. Details of the paid plan are on UniWord Pro.
Language questions
Can any of the 20 languages be my native language?
Yes. English, Spanish, French, German, Bengali, Arabic, Hindi, Indonesian, Italian, Japanese, Korean, Marathi, Portuguese, Russian, Tamil, Turkish, Urdu, Vietnamese, Chinese (Simplified), and Chinese (Traditional) can each be the language you speak or the language you want to learn.
Can I learn English from Bengali?
Yes. Choose Bengali as the language you speak and English as the language you want to learn. Every supported language works in either direction.
Does every language include the same kind of practice?
The loop is the same: Learn Mode, Review, Quiz, Exam, Wordbook categories, Explore articles and stories, and Grammar Basics. The listing describes 60+ articles and 60+ stories across topics and difficulty levels. It does not give a separate count for each language.