- Not $FB (took almost 8 years)- Not Instagram- Not $SNAP (which doesn't have 1 billion)- Not $TWTR (also doesn't have 1 billion)- Not WeChat or WhatsAppIt's China's TikTok app, which uses short videos to catchy music to capture users. Most users are children. Like Snap, its hope is that its userbase will age with the app to help it become an attractive place to advertise.