TikTok, an app that is said to be very popular over the pandemic, has many features that make it addicting. One of the ways it pays its top users is by giving them exclusive content and letting them make money through ads that pop up while they are recording. It is also said to be very difficult to quit this app once you've started using it. Some people believe that TikTok is addictive because it stimulates the brain in a way that other apps do not.