More users than TikTok and Instagram but most people have not heard of it. WeChat is an all-in-one communications app for free text messaging, voice and video calls, photo sharing and games. Additionally, through “mini-programs” (apps integrated into the main WeChat platform), it becomes a one-stop shop by allowing users to do things like send payments, make purchases or book taxis, flights and hotels. Headquartered in Shenzhen, China, WeChat is one of the world’s most popular social media downloads, with around 980 million active user. National Online Safety have produced a helpful guide – check it out