WordMaster: Learn English Voca is an Android application developed by kodemachines. This free educational app falls under the Education & Reference category and provides a practical and useful solution for low-dimensional, internet-free word memorization. With its database of 4700 words, users can study anywhere, even offline.

WordMaster uses the Word Packs method, which is also used by Oxford and Cambridge, to help users memorize words. The app queries and stores words at a certain frequency, allowing users to memorize words without realizing it. The app offers beginner, intermediate, and advanced levels, allowing users to choose the most suitable package for their level.

In addition to the study module, WordMaster also offers a test module with various types of tests, including Multiple Choice, Gap Fill, Listening, and Writing tests. Users can create their own word lists or examine automatically generated lists to solve tests.

WordMaster also features a word-reminder function, which reminds users of the words they are working on as often as they like. This feature helps users keep their vocabulary alive. Moreover, users can improve their English speaking skills by listening to the pronunciation of the words or by solving listening tests.

Overall, WordMaster: Learn English Voca is a well-designed application that provides users with a user-friendly interface and useful features to help them improve their English vocabulary.