Blitz

The new Blitz app lets users engage in security chats with end-to-end encryption without revealing their real names or email addresses.
The main goals are security and privacy — the server does not store any activity, messages, names, cell IDs or any other personal data. There is no way to retrieve message contents, even if the server and communication channel were compromised.

The application packs all features of the modern messaging app with added layer of security measures like local database encryption, pin-code app lock and messages auto-deletion.