How to learn touch typing ? Is there any app to learn it easily?

Answer 1

Mavis beacon

Answer 2

I learnt it from here 👇
https://www.typingtest.com/trainer/

here's a tip:-
no matter which app/website you choose, you will get good at it only after a good amount of practice, so don't get frustrated in the begining thinking that this technique is making you type slow and inaccurate.