Post Quantum Secure Chat vs Cord

Secure messaging for the quantum era. PQC Chat is the first consumer messaging app built with NIST-standardized post-quantum cryptography. While traditional encryption may be vulnerable to future quantum computers, PQC Chat uses ML-KEM-768 and ML-DSA-44 algorithms to ensure your private conversations remain private — today and tomorrow. Why Post-Quantum Security Matters Quantum computers pose a real threat to current encryption standards. Data encrypted today could be stored and decrypted later when quantum computers become powerful enough. PQC Chat protects you against this "harvest now, decrypt later" threat. Key Features • True End-to-End Encryption — Messages are encrypted on your device and can only be read by the intended recipient. Not even we can access your conversations. • NIST-Approved Algorithms — Built with ML-KEM-768 for key exchange and ML-DSA-44 for digital signatures, the same standards adopted by governments worldwide. • Secure Image Sharing — Photos are encrypted before leaving your device, ensuring complete privacy for all shared media. • QR Code Contact Verification — Verify contacts in person by scanning QR codes, preventing man-in-the-middle attacks. • Real-Time Messaging — Instant message delivery with read receipts and typing indicators. • No Phone Number Required — Create an account without sharing personal information. • Cross-Platform — Message friends on any device seamlessly. Privacy by Design - No message content stored on servers - No tracking or analytics - No ads, ever - Open cryptographic standards About Post-Quantum Cryptography PQC Chat implements the Federal Information Processing Standards (FIPS) 203 and 204, published by the National Institute of Standards and Technology (NIST) in August 2024. These represent the gold standard in quantum-resistant cryptography. Protect your conversations for the future. Download PQC Chat today. Terms of Use (EULA): https://pqcnow.com/terms-of-service

Cord is a privacy-first messaging app with end-to-end encryption and minimal identity requirements—no phone number, no email, no contact upload. Chat history stays on your device. End-to-End Encryption End-to-end encryption for messages Forward secrecy Cryptographic message authentication Minimal Identity by Design No phone number required No email required No contact list uploads Join cords via code/QR History Stays on Your Phone Chat history is stored in an encrypted database on your device Cord does not upload that history An app update does not delete your chats Move to a new phone on the same Wi-Fi. Chats copy directly between the phones, encrypted for the transfer, and are not uploaded After the move, messaging continues on the new phone. The previous phone can still be opened to read Key Features Create or join secure cords (group chats) Real-time encrypted messaging Move chats, including photos and files, to a new phone Message expiration options Dark and light themes Push notifications (no message content) Privacy-First No ads or trackers Built on open cryptographic standards Designed to minimize stored data Why Choose Cord? Cord focuses on private communication without tying your account to personal identifiers. Your messages are end-to-end encrypted so only participants can read them. History stays on the device, and you move it yourself when you change phones. For App Store Connect, the promotional text is 145 characters: Privacy-first messaging with end-to-end encryption—no phone number, no email. Move chats to a new phone over Wi-Fi. History stays on your device. What's New: Chat history stays in an encrypted database on your device. Updating the app does not delete your chats. Move to a new phone on the same Wi-Fi. Chats copy directly between the phones and are not uploaded. After the move, messaging continues on the new phone. The move is described as a handoff, not a backup and not a second active phone. Chat history is copied on the local network and is not uploaded. After the move, messaging continues on the new phone, and the previous phone can still be opened to read.