Post Quantum Secure Chat vs StillHold

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

StillHold is the opinion archive that makes thinking legible. Post your opinions. They're permanent — they can't be deleted, only revisited. At 6 months, 1 year, and 2 years, we resurface each post with one question: do you still hold this? You respond with one of three states: Still — you stand by it. Evolved — your view has developed. Explain how. Recanted — you've changed your mind. Own it. Every reckoning becomes a timestamped entry attached to the original post, forming a visible chain of how your thinking has changed over time. Your profile isn't a feed — it's a living intellectual autobiography. WHY STILLHOLD EXISTS The internet has infinite memory but zero accountability. Old takes exist but are buried, and everyone tacitly agrees not to dig them up. StillHold makes the buried layer the main layer. Changing your mind is admirable. Pretending you never held the old view is not. FEATURES • Permanent opinion archive — post up to 500 characters with a category tag • Three reckoning states — Still, Evolved, or Recanted, each with explanation • Evolution Feed — see people changing their minds in real time • Half-baked tag — thinking out loud without the pressure • Profile metrics — grapple rate, archive depth, unreckoned count • Scheduled posts — cool off for 1, 6, or 24 hours before committing • Drafts — save half-formed thoughts before they go on the record • Weekly community prompts — cohort questions that resurface together • Shareable chain images — share your reckoning history as a card • Full-text search of your own archive • Follow users globally or by category • Invite codes for beta • Push notifications for resurface prompts • AI content moderation — every post reviewed for safety • Data export — download everything (GDPR/CCPA compliant) • Account deletion with 30-day cooling-off period • Sign in with Apple MODERATION & SAFETY StillHold moderates behavior, not beliefs. Controversial, unpopular, and uncomfortable opinions are explicitly welcome. We block harassment, threats, doxxing, and illegal content. Every post is reviewed by AI before publication. Users can report, block, and hide content. We review all reports within 24 hours. Free to use. No ads. No tracking.