TikTok posted an impressive 67 million official downloads onto iOS devices in the US in the first quarter of 2020 (1Q2020). However, in 2Q2020, this stat has been eclipsed by one of approximately 94 million by the collaboration app Zoom. This is a major factor in a trend favoring business-focused apps on the Cupertino company's platform.
https://www.notebookcheck.net/Zoom-destroys-TikTok-s-record-for-downloads-from-the-App-Store-in-2020.482429.0.html
These are all Chinese or Chinese-affiliated apps. Avoid to avoid inadvertently siding with the Communist Party of China.
I still wonder why so many people chose Zoom when Jitsi Meet is a much better alternative, not to mention completely free and open source. I suppose Zoom traded sound quality for marketing spending...