This is an online, free course. Our library has a subscription so we’re able to get the full course for free. It is said to be for grade school through high school. The website describes the course as such, “Mango prepares learners for realistic conversations and strengthens everyday communication skills in over 70 world languages, including English.” Mango
Memrise is free, but you can purchase a subscription. Available on computer and app. The courses vary by language. It’s very similar to using flashcards or self-quizzing, but you don’t have to hold the cards for your child or pick out what to teach them. Everyone I know hates the speed task, just teach your kids to skip it if they hate it, it’s very frustrating. Many languages are available.
Duolingo is free, but you can purchase a subscription. Duolingo is teaches vocabulary, similar to flashcards or self-quizzing, but adds more games than some other options, and includes more grammar. The vocabulary seems to be presented in a different order than other apps. It teaches beginning skills but does not have conversation practice. Available on computer and app.