What is the QTConnect application, how does it work?

According to the introduction of QTSoftware Ltd., QTConnect is a Communication app on the Android platform. There is currently a 3.7.0 version released on Mar 11, 2020, you can see the details below.

QTConnect End-to-end secure communications for voice, messaging, group chat on everyday smartphones.

Features:
End-to-end secure messaging
Secure voice calling
File transfer
LAN communication
Group messaging

IMPORTANT: This product will NOT allow calls without an QTConnect Service License obtained from QT Software Ltd.(you cannot purchase a license from within this application).