Tik Tok logos are seen on smartphones in front of a displayed ByteDance logo in this illustration taken November 27, 2019. REUTERS/Dado Ruvic/Illustration/File PhotoTikTok owner ByteDance saw its revenue grow 70% year on year to about $58 billion in 2021, slower growth than a year earlier as China tightens its regulation of big tech companies.According to two people familiar with the matter the numbers were revealed to a small group of employees at an internal meeting of the social media giant this week .In 2020, the Beijing-based company's total revenue grew by over 100% to $34.3 billion, Reuters has reported.