This app can simulate a real wooden fish, which can be knocked on the screen. There is an automatic tapping mode. When this mode is turned on, it can be set to never stop/stop when the cumulative tapping reaches n times. There are 13 kinds of woodfish timbres available. (The last one is the deep timbre of the big wooden fish) You can customize the floating text, merit+1 and annoyance - 1. There are 6 new knock styles, each of which is very cool.