Are you looking for an app to improve your English vocabulary? Look no further than Learn English Vocabulary by AltairApps. This free Android app is perfect for both beginners and those looking to refresh their vocabulary. With over 5,000 words classified by levels and topics, you'll be able to improve your vocabulary in an easy and fast way.

One of the unique features of this app is the captivating photos that accompany each word, helping you to memorize them visually. In addition, all words are pronounced by native speakers, so you can learn the correct pronunciation. The app also includes 3 basic exercises in each topic to learn the words and several supplementary exercises for further voluntary practice. The intelligent revision system will make you revise the word according to your hits and mistakes, ensuring that you remember the words. The app even provides the past and the participle of every irregular verb. Progress is saved in the cloud, so you won't lose your progress even if you have to reinstall the app for any reason. With offline usage, you can work offline whenever you want, and the app can be used by several users, each with their own account and progress saved. Lastly, the app offers a monthly competition where you can earn points by solving exercises, with the first three winners receiving a free level.