QieQie app for iPhone and iPad

It can log in to multiple devices at the same time, and supports various chat modes such as text, picture, voice, and video calls. Contains secure session, message self-destruct, message editing, burn after reading, two-way deletion, lock password, appointment destruction, account self-destruct and other functions

Secure session
With end-to-end encryption, no chat logs are stored in the cloud.

Message self-destruct
You can set a point in time when all messages you have sent are automatically deleted from all members.

Message editing
The message can be edited again within 24 hours of sending it and will be synchronized to all users who see it.

Burn after reading
The two parties in a private chat can set a countdown that starts after the message has been read, and the message will be automatically deleted when the time point is reached.

Bidirectional deletion
Messages you send can be deleted from all members, and you can choose to delete other peoples messages when chatting privately or as a group host.

Lock password
To unlock the lock password, you need to verify your face, fingerprint, gesture, or password to access the app.

Scheduled destruction
Enable scheduled destruction, enter the corresponding password when unlocking the app, and automatically log out of the account.

Account self-destruct
You can set a certain period of time, if you are not online during the period, then the account will be automatically cancelled.