Learn new words app

Here are some popular "learn new words" apps:

1. Duolingo: A highly-rated app that offers courses in over 30 languages, with a focus on vocabulary building and grammar practice. (iOS, Android)
2. Quizlet: A study app that allows you to create digital flashcards and play games to learn new words. (iOS, Android)
3. Word Hippo: An app that helps you learn new words by providing definitions, synonyms, antonyms, and example sentences. (iOS, Android)
4. Lingodeer: A language learning app that focuses on vocabulary building, with interactive games and exercises. (iOS, Android)
5. Vocabulary.com: An app that offers a comprehensive vocabulary building program, with interactive exercises and games. (iOS, Android)
6. Babbel: A language learning app that offers courses in 14 languages, with a focus on vocabulary building and grammar practice. (iOS, Android)
7. Memrise: A language learning app that uses spaced repetition and gamification to help you learn new words. (iOS, Android)
8. Anki: A flashcard app that uses spaced repetition to help you learn new words and phrases. (iOS, Android)
9. Word of the Day: An app that sends you a new word every day, along with its definition, pronunciation, and example sentences. (iOS, Android)
10. Merriam-Webster: An app that offers a comprehensive dictionary and thesaurus, with features like word of the day and word games. (iOS, Android)

These apps are all highly rated and can be a great way to learn new words and improve your vocabulary.