Post Quantum Secure Chat

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In-app purchases

About this app

The world's first mobile messenger with true Post-Quantum Cryptography.

While current encryption can be broken by future quantum computers, PQC Chat uses ML-KEM-768 and ML-DSA-65 — the same algorithms standardized by NIST for the quantum era.

🔐 QUANTUM-SAFE ENCRYPTION

• ML-KEM-768 key encapsulation (NIST FIPS 203)
• ML-DSA-65 digital signatures (NIST FIPS 204)
• AES-256-GCM message encryption
• X25519 + Ed25519 hybrid fallback
• Zero-knowledge architecture — we can't read your messages

💬 SECURE MESSAGING

• End-to-end encrypted text messages
• Encrypted image sharing
• Real-time message delivery
• QR code key exchange for contacts
• No phone number required

📱 FREE FEATURES

• Unlimited text messages
• Up to 10 contacts
• 5 encrypted images per month
• Full PQC security

⭐ PREMIUM FEATURES

• Unlimited contacts
• Unlimited encrypted images
• Voice & video calls (coming soon)
• Priority support
• Premium badge

🛡️ WHY POST-QUANTUM?

Quantum computers threaten today's encryption. Data stolen now can be decrypted later ("harvest now, decrypt later" attacks). PQC Chat protects your conversations against both current and future threats.

🔒 PRIVACY FIRST

• No ads, no tracking
• Open cryptographic standards
• Keys generated on your device
• Messages encrypted before leaving your phone

Start protecting your conversations with quantum-safe encryption today.

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What's New (Release Notes)

Version 1.0.5
• Introducing Premium subscription with unlimited features
• Free tier: 10 contacts, 5 images/month
• Native in-app purchases
• Performance improvements
• Bug fixes

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Keywords/Tags

quantum encryption, secure messenger, encrypted chat, post-quantum cryptography, PQC, ML-KEM, privacy, secure messaging, end-to-end encryption, NIST, quantum-safe

What’s new

Dark mode bugs removed.