Vocabulary Master is a free Android app developed by Indrata that provides a simple and easy way to build and improve your English vocabulary. The app features 1500 words divided into 150 levels that are commonly used in everyday academic and business writing, and are also likely to appear on standardized tests such as SAT, GRE, IELTS, and TOEFL.

The app offers a variety of learning methods such as Multiple Choice, Word Scramble, and Audio (Listen to the pronunciation) quizzes to help users improve their vocabulary. Even native English speakers may find the quizzes challenging, making the app suitable for learners of all levels. Additionally, Vocabulary Master provides word definitions and translations in 20 different languages including Afrikaans, Arabic, Bengali, Chinese (Simplified), Dutch, Filipino, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Malay, Portuguese, Punjabi, Russian, Spanish, Thai, and Vietnamese.

For those looking to further improve their vocabulary, the app offers some helpful tips such as reading, keeping a dictionary and thesaurus handy, using a journal, learning a new word every day, playing games, and engaging in conversations.