Learning Quran is one of the fardh do for a Muslim. If someone doesn't know how to read it then he can't be a true believer. Often we think that learning quran is a tough job because it's in Arabic. But honestly it isn't. There are few learn quran online free course available. But now, You can learn quran online through Alif Central and it's completely free. You will get web version and Android app or iOS app too. Just give it a try!