TikTok is a bit of a controversial app. Remember, when everyone was posting the elderly photos, created with FaceApp? And then we discovered that Russians might be stealing all our info and photos? Similar accusations have been made about the Chinese App, TikTok. Although, I don't see millions of people abandoning Tiktok, like they did with FaceApp...unless they don't have a choice.
The Indian government has officially banned TikTok, as well as 58 other Chinese apps, as relationships between India and China have deteriorated. You can follow the story here.