Signal: Top-rated app with strong encryption, local storage, no data collection, and full open-source support..Threema: Offers anonymous sign-up with no phone/email, zero data collection, and strong encryption by default..WhatsApp: Most used app with default end-to-end encryption for texts, calls, and group chats..Wire: Secure collaboration app with encryption, multi-device use, GDPR compliance, and on-premise options..Element: Decentralized, open-source messenger with full encryption and support for multiple platforms..NetSfere: Enterprise-grade secure app with 256-bit AES encryption and full regulatory compliance..Telegram: End-to-end encryption only in Secret Chats, includes self-destructing messages and proxy tools..Wickr Me: Offers anonymous chats with message expiry timers and screenshot detection for privacy..Briar: Peer-to-peer offline messaging app using Bluetooth or Wi-Fi, designed for activists and journalists..Read More Stories.Join our WhatsApp Channel to get the latest news, exclusives and videos on WhatsApp