Since the 60s organizations used the " International English Language Testing System " (IELTS) test to measure the English language ability of non-native speakers wishing to for immigration or enroll in English-speaking universities. IELTS Exam Preparation is the app that covers the most important words used for the real IELTS exam . The list of words were carefully selected by language experts and if these are mastered, chances of a successful IELTS test pass are very high . Each of the 500