1, the enterprise office software that everyone has heard of-Nail, its secret chat has the following functions (the message has been read and automatically destroyed, the message is forbidden to be copied and forwarded, and the avatar coding prevents screen capture, etc. )

2. Ansmith, which was quite popular a few years ago, basically stopped introducing new functions and disappeared.

3.Bat, a chat software that was launched only this year, focuses on security encryption and does not reveal privacy. It has the following functions (burn after reading, anonymous chat, chatting with people nearby, etc. ).