Lucent GK Book in HDis an Android application designed by Desi Coder that falls under the Education & Reference category. The app offers a comprehensive guide to General Knowledge, History, Geography, Indian Constitution, Economy, Physics, Chemistry, Biology, Computer, Science and Technology, and Sports. With an easy-to-use interface, the app provides chapter-wise details on all the aforementioned subjects.

The app also contains a feature that allows users to rate it on the Google Play Store. However, it must be noted that the app is free to use and does not require any personal information from the user. The app is a reliable source of information for students and individuals who are looking to expand their knowledge on various subjects without having to invest in physical books.