ListLang: Languages to Fluency is a free app designed for intermediate language learners who want to achieve fluency in over 20 languages. The app focuses on teaching the most frequent words in context, as these words make up a significant percentage of all text and speech. By learning these words, users can enhance their understanding and usage of the language.

One of the key features of ListLang is its emphasis on learning words in context, which helps users naturally grasp their meaning and usage, rather than relying on rote memorization of definitions. This approach makes the learning process more engaging and effective.

Additionally, ListLang incorporates machine-learning technology to assist users in learning vocabulary more intelligently and efficiently. The app tracks users' progress, providing useful statistics and achievements to help them stay motivated and work towards their language learning goals.

Moreover, ListLang offers competitive leaderboards, allowing users to learn alongside a global community and stay motivated through friendly competition. The app offers courses in a wide range of languages, including Spanish, French, German, Portuguese, Dutch, Russian, English, Czech, Turkish, Chinese, Korean, Japanese, Persian, Italian, Polish, Romanian, and Finnish.

ListLang: Languages to Fluency is a comprehensive language learning app that provides an enjoyable and effective way for intermediate learners to expand their vocabulary and improve their language skills.