My au(マイエーユー)-料金・ギガ残量の確認アプリ

GroupMe

Google Voice

Messenger Kids – The Messaging

Skype

telegram

Marco Polo - Video Messenger

Discord: Talk, Chat & Hang Out

Snapchat

Phoner 2nd Phone Number + Text

Element - Secure Messenger

Firefox Fast & Private Browser

Phone Call App & WiFi Call Any

Robokiller - Spam Call Blocker

Pulse SMS (Phone/Tablet/Web)

Messenger

Smart Messages

signal

Text Free: Call & Texting App

Nextplus: Phone # Text + Call

Threema. The Secure Messenger

whatsapp

Google Meet

Microsoft Edge: AI browser

TextMe Up Calling & Texts