Great app but... Great app for building vocabulary! Just to let everyone know between all 3 levels it is not 6000 words. Level 1 has 965, level 2 has 2098 and level 3 has 2865; which equals out to 5928 total words. Not too bad though and it has audio to help with pronounciation.
Stop the Gumiho and increase your knowledge of Korean words and language