Duolingo is a popular free language-learning resource that offers courses in over twenty languages. It includes lessons, speaking and listening activities, and tracks your progress over time. It offers courses in Spanish, German, French, Italian, and many more languages.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Identify a free foreign language learning resource.

### Response:
Duolingo is a popular free language-learning resource that offers courses in over twenty languages. It includes lessons, speaking and listening activities, and tracks your progress over time. It offers courses in Spanish, German, French, Italian, and many more languages.
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Duolingo is a popular free foreign language learning resource that offers a comprehensive and engaging learning experience. Duolingo is a mobile app that offers courses in over 30 languages, including Spanish, French, German, Italian, Chinese, and many more.

Duolingo's unique approach to language learning involves gamification, interactive exercises, and bite-sized lessons that cater to different learning styles. The app is available for both iOS and Android devices, and it's completely free, with no ads or in-app purchases.

Duolingo's strengths include its flexibility, ease of use, and extensive coverage of languages. It also offers a feature called "Learn in Progress" that allows learners to track their progress and set goals for improvement.

Overall, Duolingo is an excellent free foreign language learning resource that can be used by individuals of all ages and skill levels.