楽天でんわ　-番号そのままで通話料がお得-

Smart Messages

Marco Polo - Video Messenger

Phone Call App & WiFi Call Any

Google Voice

Messenger Kids – The Messaging

signal

whatsapp

Messenger

Element - Secure Messenger

TextMe Up Calling & Texts

Robokiller - Spam Call Blocker

Firefox Fast & Private Browser

GroupMe

Phoner 2nd Phone Number + Text

Microsoft Edge: AI browser

Snapchat

Pulse SMS (Phone/Tablet/Web)

Text Free: Call & Texting App

telegram

Discord: Talk, Chat & Hang Out

Threema. The Secure Messenger

Skype

Nextplus: Phone # Text + Call

Google Meet