You can adjust count-in settings in the player.
There is a detailed tutorial inside the app in Settings/Tutorial/Sharing.
(You can also select the "?" in a circle at the top of the page)
In OSX look under: Help/Tutorials and Help/Help & Support.
For me, the best (i.e. least dorky) count-in setting on a live gig is "Drumsticks" at low volume. But "Finger Snaps" is a cool idea! You should post that suggestion in the "Features Request" section. And welcome to the Forum!