The popular video app TikTok is now used for longer, on average, than YouTube in the U.S. and U.K., according to app analytics firm App Annie. While YouTube still has a larger user base and thus more use time overall, individuals tend to use TikTok more than YouTube for video consumption.
https://www.notebookcheck.net/TikTok-eclipses-YouTube-Americans-and-Brits-now-spend-more-time-on-TikTok-than-YouTube-on-average.559046.0.html