JLPT Grammar English Version is an Android application developed by Bùi Xuân Hiếu. It is a free educational and reference app designed to help people prepare for the Japanese Language Proficiency Test (JLPT). The app covers all common grammatical problems in the Japanese language.

The app has a user-friendly interface that makes it easy to navigate and access the different grammar topics. It provides explanations and examples of each grammar point, making it easy to understand and remember. The app is compatible with Android 9.0 and above.

Overall, JLPT Grammar English Version is a useful app for anyone preparing for the JLPT. The app covers all the necessary grammar topics and provides clear explanations and examples. However, it would be great if the developer could add more practice exercises to help users reinforce their learning.