If you've already registered on your computer, please use the same email address and password.
After installing iKnow! mobile app, tap "Sign in" and enter your registered email address and password if you already signed up for iKnow!.
*If you used your ID from other services(Google or Facebook) to create your iKnow! account, you have to use the same one on your Mobile app as well.
"Start learning" button is for users who don't have their iKnow! accounts yet.