Threema。安全的通讯工具
Threema GmbH
Threema - Private Messenger
junemoney
Threema Work
Threema Voice Message Plugin
Threema QR Scanner Plugin
Signal - 私密消息助手
Signal Foundation
Threema OnPrem。自托管式企业通讯工具
Wire - 私密消息应用
Wire Swiss GmbH
Google Chat
Google LLC
Telegram X
Telegram FZ-LLC