TRUSTIM Based on matrix open protocol Your encrypted chat and video conference APP Features: a.All messages are encrypted end-to-end, and chat records cannot be stored in the cloud. Your security is up to you. b.chat record will be bidirectional retracted in one click, all chatting record on other's device will be retracted simultaneously, the retracted data can't be recovered. c.Single one-on-one chat, group chat. d.Enter the destruction password in the lock screen password window, and destroy the account number and all information in an emergency. e.The private key is used for transmission content encryption, and is only stored in the user's mobile device. f.All the conversations are only readable by the people participating in them?benefit from TRUST IM end-to-end encryption which is safe and reliable. g.Use the calculator as the lock screen, and customize the lock screen password.