Ciphera: Private Messenger

Mumline

About this app

Ciphera is a next-generation private messaging app designed for uncompromising confidentiality, secure communication, and absolute digital freedom. Communicate freely without phone numbers, email addresses, central tracking, or third-party ads.

Built from the ground up for individuals, professionals, and privacy-conscious users seeking the ultimate private messenger and encrypted chat experience, Ciphera delivers state-of-the-art end-to-end encryption across messages, voice notes, media files, and peer-to-peer (P2P) voice and video calls.

🔒 TRUE END-TO-END ENCRYPTED MESSAGING
• Advanced Cryptography: Every message, attachment, and voice recording is secured with military-grade AES-256-GCM encryption paired with X25519 key exchange and post-quantum security algorithms.
• Zero-Knowledge Architecture: Your cryptographic keys remain exclusively on your device. Neither our relay servers nor any third party can intercept, read, or decrypt your private chats.
• No Metadata Harvesting: We do not log timestamps, contact graphs, IP addresses, or communication patterns. Your personal conversations remain strictly your business.

👤 100% ANONYMOUS — NO PHONE NUMBER OR EMAIL
• Instant Anonymous Setup: Create an account in seconds without providing a phone number, email address, or personal ID.
• Privacy Handles & QR Pairing: Connect with contacts using anonymous handles or direct peer-to-peer QR code scanning (Ghost PAKE).
• No Address Book Uploads: Ciphera never scans, accesses, or uploads your device contacts to remote servers.

📞 SECURE PEER-TO-PEER (P2P) VOICE & VIDEO CALLS
• Direct Crystal-Clear Calling: Experience high-definition, encrypted voice and video calls powered by WebRTC and DTLS-SRTP.
• Serverless Audio & Video Relay: Call streams are routed device-to-device with no central recording, eavesdropping, or intermediate audio storage.

⚡ DISAPPEARING MESSAGES & ZERO-TRACE PRIVACY
• Self-Destruct Timers: Configure automated message expiration from 30 seconds to 7 days. Expired messages are permanently wiped from all devices.
• Panic Wipe PIN: Enter a covert emergency PIN at any prompt to instantly erase local cryptographic keys, purge cached databases, and reset the app.
• Anti-Screenshot & Screen Shield: Protect confidential conversations with active screenshot blocking and background app switcher blurring.
• Encrypted Local Vault: All local chat histories are locked with SQLCipher hardware-backed Keystore encryption.

🛡️ ZERO TRACKING & UNCOMPROMISED INTEGRITY
• Zero Ads, Zero Trackers: Completely free of in-app purchases, paid subscriptions, commercial trackers, and advertising SDKs.
• Pure Privacy Focus: Built solely for secure messaging with no data mining, profiling, or behavioral monitoring.
• Cross-Network Resilience: Reliable messaging across Wi-Fi, 4G/5G, and restricted networks with automatic offline signal queueing and instant backlog synchronization.

Take control of your personal privacy today. Download Ciphera — the secure, private, and end-to-end encrypted messaging app built to protect your conversations.

What’s new

• Encrypted file sharing up to 2 GB with instant video playback
• Sender controls to allow or restrict saving media to device
• Built-in secure document reader and performance fixes