WhisperSystems/Signal-Android Alternatives
Open-source projects similar to WhisperSystems/Signal-Android
Commercial Products
Proprietary software that WhisperSystems/Signal-Android can replace
WhatsApp is a popular proprietary messaging app owned by Meta that provides end-to-end encrypted text, voice, and video communication across devices.
Facebook Messenger
Facebook Messenger is a proprietary chat app from Meta offering text messaging, voice/video calls, and group chats with optional end-to-end encryption.
Telegram
Telegram is a proprietary cloud-based messenger supporting fast messaging, large groups, channels, and optional end-to-end encryption in secret chats.
Threema
Threema is a paid proprietary secure messenger providing end-to-end encrypted messaging, calls, and groups without requiring a phone number.
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