Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
이 박수측정기를 사용하여 관객의 반응을 측정할 수 있습니다.i baksucheugjeonggireul sayonghayeo gwangyeog-ui ban-eung-eul cheugjeonghal su issseubnida.You can use this clapometer to measure the audience's reaction.