iSharing: GPS Location Tracker

Text Free: Second Phone Number

GroupMe

Marco Polo - Video Messenger

WhatsApp Messenger

Robokiller - Spam Call Blocker

Phoner: Second Phone Number

Microsoft Edge

Messenger

Pulse SMS (Phone/Tablet/Web)

Nextplus: Phone # Text + Call

Snapchat

Discord - Talk, Play, Hang Out

Firefox Fast & Private Browser

Phone Call App & WiFi Call Any

Google Voice

Messenger Kids – The Messaging

Signal Private Messenger

Telegram

Smart Messages

Threema. The Secure Messenger

Google Meet

Element Classic

Skype

TextMe Up Calling & Texts