I think it's good. APP is recommended intelligently by age, and can reasonably match the content according to children's cognitive characteristics. There are 52 themes in each age group and more than 200 international award-winning classic picture books. It not only covers China's classic legend "The Legend of the Eight Immortals", the new version of The Journey to the West's beautiful painting, the traditional culture China Ancient Poetry Conference, the foreign classic IP "Frozen" and the award-winning works of top masters, such as "Great Career" and "An Ye Guang Ya: Beautiful Mathematics". My son likes watching underwater columns, dinosaur world and mini secret service team best. Some interesting dramas can be listened to 10 times ~ there is no other advertising content except picture books, so you can rest assured to show them to your children.