Happy7 Publisher: cheng cong Genre: Education Released: 7 Nov, 2016 Size: 60.6 MB Price: $0.99 Click here to request a review of this app App Store Info Description This is a number of interesting games, the screen appears to be a random number of digital touch they collide with each other into a number of 7. Note that the number can be a symbol of operation yo! Screenshots Screenshot 1 of 6