It is highly professional software ever created! I would give 1 star all other typing courses but Solo 5 stars! I have purchased myself and never regret! this app is unique and it is not just typing course!! The difference between other ones and Solo, other typing course may have games or something else, but no exact result after accomplishing. however FINISH 100 lessons in SOLO and YOU can type fast, accurate and without looking at keyboard! I guarentee. if you dont believe do just 10 lessons and you will know it