With MobiVisor Messaging, you can message with other MobiVisor users. Supports end-to-end encryption and file sending. You need MobiVisor to use this application.
IOTIQ is the creator of MobiVisor Messaging which can be found in the Business category. Over 5K users downloaded the tool and its latest update was released on Sep 15, 2020. Google Play shows that this application is rated 4 by its users.
Take the opportunity to get the installation package of MobiVisor Messaging 1.3.66+441 free of charge and have a look at users' reviews on Droid Informer. The app is compatible with Android 4.0.3 and above. The app is completely safe to download.