Azar: Video Chat, Meet Friends

Phoner: Second Phone Number

Skype

WhatsApp Messenger

Smart Messages

Discord - Talk, Play, Hang Out

GroupMe

Marco Polo - Video Messenger

Pulse SMS (Phone/Tablet/Web)

Signal Private Messenger

Firefox Fast & Private Browser

TextMe Up Calling & Texts

Snapchat

Google Meet

Telegram

Threema. The Secure Messenger

Nextplus: Phone # Text + Call

Element Classic

Microsoft Edge

Google Voice

Phone Call App & WiFi Call Any

Messenger

Text Free: Second Phone Number

Robokiller - Spam Call Blocker

Messenger Kids – The Messaging