Parts of Speech English Grammar is a free Android app developed by rEzUs Apps that educates users about the English language's parts of speech. The app provides a comprehensive guide to the different parts of speech, their definitions, and how they are used in sentences.

The app includes a brief introduction to traditional grammar, which explains the concept of parts of speech and their importance in the English language. The app then provides detailed information on different parts of speech, including nouns, verbs, adjectives, adverbs, pronouns, prepositions, conjunctions, and interjections. The app also covers numeral, article, and determiner, which are sometimes listed as parts of speech.

The app's content is well-organized, making it easy for users to navigate and find the information they need. The app's language is simple and accessible, making it suitable for learners of all levels. Overall, Parts of Speech English Grammar is a useful educational tool for anyone looking to improve their understanding of English grammar.