“English Grammar – Idiom (lite)” is a free Android app developed by engsoft.tc that helps users learn idioms in an interesting and fun way. The lite version includes 100+ sample sentences and idioms under different categories with Chinese translations. The app is designed to help improve TOEFL, IELTS, TOEIC, SAT, GMAT, GRE, and HKDSE results. The app has a comprehensive lesson plan with translations and 200+ multiple-choice questions in the question bank. The quiz game generates intelligently difficult questions based on the user's performance. The app has two game modes, answering 20 or 50 questions. During the quiz game, users can create their own idiom list and display the details of the idiom related to the question they just answered. The app also provides a detailed test result showing which questions were answered incorrectly, score, max combo, date and time of the test. The app has a motivating trophy system that records the various accomplishments achieved during learning and allows users to share their achievements with friends. The app also includes a quick search feature, which can easily search 100+ idioms usage with Chinese translation. The app is written by experienced English teachers and requires no internet connection.