After US President trump threatened to ban wechat, more and more users in the United States chose to download wechat and its encryption replacement signal. Wechat users in the United States hope to install the software before it is removed from the major app stores. Others want to use alternative services, including signal, an encrypted chat software developed by signal foundation, a nonprofit organization. According to the statistics of sensor tower, the average download volume of wechat in the United States in the last six days was 41% higher than that in the week before the ban was announced last Thursday, while the download volume of signal in the United States and China increased by 30% and 90% respectively. Stephanie Chan, a mobile strategist at sensor tower, said signal is popular with Chinese users mainly because of its strong encryption features. Signal did not comment. < p > < p > wechat users also turned to Tencent’s QQ, because the US ban did not explicitly cover the latter. Downloads of the software in the United States have also tripled in the past week. < / P > < p > some Chinese Americans worry that banning wechat will cut off their contact with their relatives and friends in China. But it is not clear whether the US government will ban wechat in mid September. They can ask apple and Google to remove wechat from the app store, or ask the app to stop providing access or updates to U.S. users.