How old is sister Tik Tok Cong?

38 years old. Cong's sister shows on her homepage that her age is 38, which is also shown in the video. Tik Tok is a short video social software for music creativity hatched in ByteDance. The software was launched on September 20, 20 16. It is a short video community platform suitable for all ages. Users can choose songs, shoot music works and form their own works through this software.