《Threema》 - 安全保密的即時通訊工具
Threema GmbH
Threema - Private Messenger
junemoney
Threema Work
Threema Voice Message Plugin
Ghazala messagerie - Suivis de
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Signal:私密通訊軟件
Signal Foundation
SafeSwiss® - 加密信使
Safeswiss Secure Communications
LINE
LINE (LY Corporation)
Google 訊息
Google LLC