How can I stop the program from singing when I finish a quiz page?

Answer 1

You can't. Either you pay, or you startle people on the bus.

Answer 2

You can mute your phone (set media volume to 0) then the ads won't make any sound.

Answer 3

Does that work? Because normal phone mute doesn't do a thing.

Answer 4

Not sure what kind of phone you got, on mine I can change volume separately for ringtone, media, notifications and system sounds (samsung galaxy / android)