Warning - this app is run by a bunch of Chinese commies in HK / Communist China. Staff has been harrassing me for my ID and passport since suspending my acc. Apparently someone reported my acc. as fake, and they automatically suspended me with no evidence whatsoever. Absolute joke of a app. Be careful of what docs. you decide to send to these Chinese agents. HT is nothing more than a spy network against foreigners disguising as a language app. Use at your own risk.