If you are not used to typing, try typing practice.
You can improve your typing speed.

There is also a function to adjust the font size for those with blurred eyes.

Recommend it to your acquaintances who reply late in KakaoTalk because your smartphone typing speed is slow.
It will help you a lot~


function
0. Landscape mode support
1. Vocabulary practice (15,000 words)
2. Sentence practice (1,300 proverbs)
3. Games (venetian format)
4. Statistics (shows speed/practice time/practice typing count by day)