Threema. The Secure Messenger
Threema GmbH
Threema - Private Messenger
junemoney
Threema Work. For Companies
Threema Voice Message Plugin
Threema QR Scanner Plugin
Signal - 안전한 메신저
Signal Foundation
Threema OnPrem. Self-Hosted
카카오톡 KakaoTalk
Kakao Corp.
Telegram X
Telegram FZ-LLC
Google 메시지
Google LLC