Great app
I find it structured and very handy. I believe this will be useful in my Korean studies. I am right handed. I find it very cumbersome to do some of the exercises since some of them demanding me to alter hand and press enter with my left hand. I would suggest you swipe for enter and/ or make the position of the button possible to move depending on if you’re right or left handed or you get that option when you start the app for the first time. I managed to swipe away the instructions when I opened without reading them and couldn’t find them afterwards. I almost didn’t figure out how to do the exercises and nearly uninstalled the app. I suggest you have the possibility to review the instructions somewhere in the menus in the app too. Or use another symbol that indicates exercises better.