Proton Mail: Encrypted Email

Text Free: Second Phone Number

Messenger

WhatsApp Messenger

Robokiller - Spam Call Blocker

Nextplus: Phone # Text + Call

Firefox Fast & Private Browser

GroupMe

Pulse SMS (Phone/Tablet/Web)

Phoner: Second Phone Number

Snapchat

TextMe Up Calling & Texts

Telegram

Marco Polo - Video Messenger

Microsoft Edge

Smart Messages

Threema. The Secure Messenger

Signal Private Messenger

Skype

Messenger Kids – The Messaging

Discord - Talk, Play, Hang Out

Google Meet

Phone Call App & WiFi Call Any

Element Classic

Google Voice