可信-私密短信与安全电话以及隐私保险箱
CoverMe Secure Messenger Inc.
Text Me: Second Phone Number
TextMe, Inc.
Text Free: Second Phone Number
Pinger, Inc
TextNow: Call + Text Unlimited
TextNow, Inc.
Google Voice
Google LLC
Google 信息
WhatsApp Messenger
WhatsApp LLC
Messenger
Meta Platforms, Inc.
Signal - 私密消息助手
Signal Foundation
短信
Delicious