As we all know, last year's popular applications such as Li Tiaotiao, Dasheng Purification, Ding Xiaotiao, etc., which focus on screen opening and skipping, all received lawyer letters from TX, and had no choice but to issue an announcement to stop operations. After that, for a period of time, a variety of new advertising applications emerged in endlessly. For example, the previously recommended screen opening skip was basically the same in function as Li Tiaotiao. In fact, Li Tiaotiao has always been available, just because the APP of major factories is updated frequently