Is there a good iOS app that helps improve my vocabulary for better conversations and writing?

Vocabulary is a focused tool designed to systematically expand a user's lexicon for practical use. The app presents users with a new 'word of the day' card, complete with definitions, example sentences, and audio pronunciations. This method is particularly effective for professionals, students, or anyone looking to articulate thoughts more clearly in emails, presentations, or social settings. A key feature is its use of spaced repetition in practice quizzes, which helps move words from short-term recognition to active recall. User reviews frequently mention the surprise of encountering newly learned words in real-world conversations shortly after studying them. However, some feedback points to a desire for more advanced words or thematic lists beyond the daily drip-feed. The free version provides core functionality, though access to the full historical word library and additional quizzes requires a subscription. For building a richer, more precise vocabulary over time through consistent, manageable lessons, this app presents a straightforward and effective solution.