Q-Lang is the application that can help you study many languages.
You can study many languages with Q-Lang.
You can do listening, reading, and speaking by using Q-Lang.
You can make language file from web sites and receive it from your friends using QR code and Bump action.
Web site 1 : http://qlang.nzin.net/
Web site 2 : http://qlang2.nzin.net/
Web site 3 : http://qlang.woobi.co.kr/
If you want to know more...