It is web based and highly effective. TypingClub is (and will always be) free for both individuals and schools. There is an optional paid school edition.
Keep practicing each lesson until you get all five stars. It really doesn't take much to learn, a few minutes a day for one to two weeks and you will be a pro!
You do not need to create an account. However, as you go through the lessons, you can create an optional profile (Student Account) in order to save your progress.