You can make Signal as your Default SMS Messaging App on Android phone. You can switch between standard text and secure message.

Downloading and setting up Signal The first step, of course, is to download the Signal app on your iPhone or Android device via the Apple App Store or Google Play.

The Signal messaging app uses end-to-end encryption so that your texts, calls, videos, files, and location remain private. Here's how to use it.

You can change the default language on Signal in the secure messaging platform's Android, iPhone, and desktop apps.

You can mark any message as unread on Signal in the Android and iPhone versions of the secure-messaging app.